Nuestros medicos

Chinenye Akaluso

Dr. Akaluso joined Metro in August 2020.  She is certified by the American Board of Anesthesiology. She is a current member of the Metro Political Action Committee.

Dr. Akaluso received her undergraduate degree from the University of Texas at Austin.  She attended medical school at the University of Texas Medical Branch – Galveston and completed her anesthesiology residency at the University of Texas Health Science Center – Houston.  She is a current member of the American Society of Anesthesiologists, the Texas Society of Anesthesiologists, and the Texas Medical Association.

In her free time, Dr. Akaluso enjoys hiking and other outdoor activities, strength training and cardio, traveling, and spending time with family and friends.

Michael Allison

Dr. Allison joined Metro Anesthesia in 1995.

A graduate of Case Western Reserve University with a bachelor’s in Health Science, he also attended Ohio State University Medical School and completed his Residency in Anesthesiology at Parkland Memorial Hospital. Dr. Allison is board certified by the American Board of Anesthesiology and is a member of the American Society of Anesthesiologists, the Texas Society of Anesthesiologists, and Dallas County Anesthesia Society, of which he is a past president.

Dr. Allison is active in many community projects and is a major donor in the Human Rights Campaign. He lives in Oak Cliff.

Emilio Andrade

Dr. Andrade joined Metro Anesthesia in 2014. He’s a current member of the Metro Political Action Committee.

He received his medical degree from the Universidad Evangelica de El Salvador. Afterwards he did two years of general surgery residency at Yale University. He then completed his Residency in Anesthesiology at Yale University as well. Following his residency, he went to New York City to do a fellowship in Regional Anesthesia and Acute Pain Management at the Hospital for Special Surgery, a teaching affiliate of Weill Cornell Medical College. There he gained extensive knowledge in orthopedic anesthesia and pain management that he now uses in all surgical populations. He held an academic position as assistant professor with the Yale University School of Medicine Anesthesia Department before moving to Texas. His main interests are peripheral nerve blocks and ultrasound use in the perioperative setting.

Dr. Andrade is board certified by the American Board of Anesthesiology and is licensed by the medical boards of Texas, Connecticut, and New York. He is a member of the American Society of Anesthesiologists, American Society of Regional Anesthesia and Pain Medicine, European Society of Regional Anesthesia and Pain Therapy, Texas Society of Anesthesiologist, and Dallas County Medical Society.

During his free time he enjoys traveling, reading about geography and history, tennis, leisure cycling, and spending time with his lovely wife.

Sohaib Awan

Dr. Awan attended medical school at Northeast Ohio Medical University and completed his anesthesiology residency at the Ohio University.

In his free time, Dr. Awan enjoys reading, hiking, traveling, and trying out new restaurants with friends.

Richard Aybar

Dr. Aybar joined Metro Anesthesia in 1993 and currently serves as a member of the Metro Political Action Committee.

A graduate of Meharry Medical College, Dr. Aybar completed his Residency in Anesthesiology at Parkland Memorial Hospital, a division of the University of Texas Southwestern Medical System. Dr. Aybar is board certified by the American Board of Anesthesiology, and is a member of the American Society of Anesthesiologists, Texas Society of Anesthesiologists and Dallas County Anesthesia Society. He has served as the district chairman of the Delegate Nominating Committee for the Texas Society of Anesthesiologists and on the board of Southwest Anesthesia Consultants for eight years.

Dr. Aybar is married with two children. He is actively involved in the Irving Bible Church Men’s Fellowship.

MacArthur L. Baker

Dr. Baker joined Metro Anesthesia in 2010 and currently serves as serves as the Privacy and Security Officer. He is a member of the Compliance Committee, Metro Political Action Committee and Scheduling Committee.

After graduating Summa Cum Laude from Grambling State University, Dr. Baker was selected as one of ten research fellows in the United States to join the NIH Academy affiliated with the National Institutes of Health. He graduated medical school from Louisiana State University School of Medicine in New Orleans and completed his Residency in Anesthesiology at the University of Texas at Houston Medical School in the Texas Medical Center where he was selected as “Outstanding Senior Resident”. Practice sites included Memorial Hermann Hospital, LBJ General Hospital, Texas Heart Institute at St. Luke’s Episcopal Hospital, Texas Children’s Hospital, and MD Anderson Cancer Center. After residency, Dr. Baker returned to the Texas Heart Institute and completed a cardiothoracic anesthesiology fellowship where he gained extensive experience managing critically-ill patients and in intraoperative transesophageal echocardiography.

Dr. Baker is board certified by the American Board of Anesthesiology. He is licensed by the Texas State Medical Board, a member of the American Society of Anesthesiologists, the Texas Society of Anesthesiologists, the Texas Medical Association, and the Dallas County Medical Society.

He enjoys listening to music, history, geography, watching and playing sports, traveling, attending church, and spending time with his lovely wife, family, and friends.

Drew Boehmer

Dr. Boehmer received his undergraduate degree from the University of Oklahoma and attended medical school at the University of North Texas Health Science Center – TCOM.  He completed his Anesthesiology residency at the Medical University of South Carolina.  He is a member of the American Society of Anesthesiologists and the Texas Medical Association. Dr. Boehmer is a member of the Metro Political Action Committee.

In his free time Dr. Boehmer enjoys golfing, hunting, grilling, traveling with his wife and family, watching college football (Boomer Sooner!) and walking his dog Remi.

Lisa Boyer

Dr. Boyer joined Metro Anesthesia in 2009 and currently serves as a member of the Compliance Committee and the Metro Political Action Committee.

A graduate of The University of Texas at Austin, she received her medical degree from The University of Texas Health Science Center in Houston. She completed her internship in internal medicine at The University of Texas Health Science Center in Houston and her residency at the University of Southern California Medical Center in Los Angeles.

Dr. Boyer is licensed by the Texas Medical Board and is board certified by the American Board of Anesthesiology. She is a member of the American Society of Anesthesiologists, Texas Society of Anesthesiologists, Texas Medical Association and Dallas County Medical Society. Dr. Boyer was raised in Arlington, Texas.

Dr. Boyer is married with two girls. Her interests include cooking, yoga, running and traveling.

Jeffrey Brekke

Dr. Brekke joined Metro in August 2018. He is a board certified anesthesiologist and an active member of the American Society of Anesthesiologists, Texas Society of Anesthesiologists, and Texas Medical Association.

Dr. Brekke received his undergraduate degree from The University of Texas at Austin. He attended medical school and completed his anesthesiology residency at the University of Texas Health Science Center at Houston where he received accolades including resident of the year, outstanding resident for transplant, obstetrics, and anesthesia recovery.

During his time off you can find Dr. Brekke playing tennis, working on cars, or hiking various trails in Denton County.

Marc R. Brown

Dr. Brown is a founding member of Metro Anesthesia. Dr. Brown was Chairman of the Management Committee from 1997 through 2004, was Chief of Anesthesiology at Lake Pointe Medical Center from 1993 to 2007, and has been Chief of Anesthesia at Presbyterian Hospital of Rockwall from 2007 to the present. He also currently serves on the Metro Political Action Committee.

After receiving his bachelor’s and medical degrees from the University of Michigan, he completed an Residency in Anesthesiology at the University of Texas Southwestern Medical Center. During residency, Dr. Brown completed a transplant and cardiovascular anesthesia fellowship at Baylor University Medical Center and produced several publications at that time. He is board certified by the American Board of Anesthesiology and an active member of the American Society of Anesthesiologists, Texas Society of Anesthesiologists, Texas Medical Association, and Dallas County Anesthesia Society.

Dr. Brown was director of transplant anesthesiology at Cedars-Sinai Medical Center. Since joining Metro Anesthesia, he has been actively involved in hospital committees, the Quality Assurance and Advisory Committees at Baylor University Medical Center; Medical Executive, Quality Assurance, Critical Care and OR Process Improvement Committees, including chief of surgery in 2002, vice chief of staff in 2003-04 and a member of the board of trustees from 2003- 2005 at Lake Pointe Medical Center in Rowlett. He has served in advisory positions at several surgery centers and was vice president and on the board of directors for Southwest Anesthesia Consultants. Dr. Brown has been on the Financial Committee, Medical Executive Committee, and both the Board of Governors and Board of Managers at Presbyterian Hospital of Rockwall since its inception in 2007. Dr. Brown is currently the Chief of Anesthesia at Presbyterian Hospital of Rockwall.

Dr. Brown is married and has three children. As a licensed stockbroker, he coordinates several Metro ventures investment partnerships in community and hotel developments and is a founding partner in Deep Sushi restaurant in Deep Ellum. He has participated in surgical mission trips to southern Mexico and enjoys fishing, cooking, poker, golf, historical fiction, and irreverent humor.

Will Bryant

Dr. Bryant joined Metro in August 2023.  He is currently certified by he American Board of Anesthesiology. He is a current member of the Metro Political Action Committee.

Dr. Bryant received his undergraduate degree from the University of Miami.  He attended medical school at the University of Louisville, and completed his anesthesiology residency at UT Houston – McGovern Medical School. 

In his free time, Dr. Bryant enjoys all things sports (mostly basketball, football, soccer, and tennis), attending electronic music festivals and shows, nightlife, stand up comedy, traveling, trying out new bars and restaurants, and going on walks with his girlfriend, Christina, and their Bernadoodle, Cooper.

Charles P. Cassady

Dr. Cassady joined Metro Anesthesia in 2010.

A graduate of The University of Texas Branch in Galveston, Texas, Dr. Cassady completed his Residency in Anesthesiology at The University of Oklahoma Health Science Center in Oklahoma City. He is board certified by the American Board of Anesthesiology, and is a member of the American Society of Anesthesiologists, Texas Society of Anesthesiologists, and American Medical Association.

Dr. Cassady was elected and served as the Chief Resident at his residency program and also served proudly for his country as a United States Marine. In his free time enjoys golf, soccer, snowboarding and activities with his family.

Calvin C. Chan

Dr. Chan joined Metro Anesthesia in 2006, and currently serves as a member on the Peer Review Committee, Marketing Committee, Credentialing Committee, Metro Political Action Committee, and Call Schedule Committee.

A graduate of the Texas A&M Health Science Center College of Medicine, Dr. Chan completed his Residency in Anesthesiology at Memorial Hermann Hospital in Houston, Texas through the University of Texas Houston Health Science Center. Dr. Chan is board certified by the American Board of Anesthesiology. He is a member of the American Society of Anesthesiologists and Texas Society of Anesthesiologists.

He is married with two children, enjoys the outdoors, and is an ardent supporter of his alma mater, The University of Texas.

Anthony «T.J.» Cirone

Dr. Cirone joined Metro Anesthesia in 2013 after completing his Residency at Los Angeles County USC Medical Center and Keck Hospital of USC. He currently serves as a member of the Management Committee and the Metro Political Action Committee.

He received his medical degree from USC Keck School of Medicine in 2009. He also attended USC as an undergraduate, earning a Bachelor of Arts in Biology and a minor in business. Dr Cirone is board certified by the American Board of Anesthesiology, and he is a member of the American Society of Anesthesiologists.

When not taking care of patients, Dr. Cirone spends time his school aged children, and dog Charlie. Over the weekend, he may be found at a farm to table restaurant, a country concert, or at the ballpark. During the winter months, he enjoys hitting the slopes with family and friends. In the summer, you’ll find him next to the grill.

Scott Cohen

Dr. Cohen attended medical school at Des Moines University.  He completed his Anesthesiology residency at the University of Missouri Kansas City. He is a member of the American Society of Anesthesiologists.

In his free time Dr. Cohen enjoys fitness, Olympic lifting, ice hockey, playing percussion, traveling, exploring new restaurants, and spending time with family.

Paul Courtney

Dr. Courtney joined Metro Anesthesia in 2015.

Dr. Courtney obtained his undergraduate degree from The University of Washington. He completed medical school at Saint Louis University and his Residency in Anesthesiology at UTMB – Galveston. Dr. Courtney is licensed in the state of Texas and is certified by the American Board of Anesthesiology. He is currently a member of the American Society of Anesthesiologists as well as the Texas Society of Anesthesiologists and the American Medical Association. He is also a member of the Metro Political Action Committee.

In his free time, Dr. Courtney enjoys playing basketball, traveling, seeing movies and spending time with friends and family. He is recently engaged and plans to marry his long time love Audrey in 2016. Dr. Courtney was born and raised in the Pacific Northwest but has moved around the country in pursuit of becoming a physician. While he loves Texas, he will forever cheer on his home town teams of the Trailblazers, Seattle Seahawks, and yes, even the Mariners.

Bryan Crowder

Dr. Crowder joined Metro Anesthesia in 2013.

Dr. Crowder is a proud member of the Fightin’ Texas Aggie Class of 2005. At Texas A&M University, Dr. Crowder received his Bachelor of Science degree in Biology with a minor in Genetics while being named a distinguished student. Dr. Crowder went on to receive his Doctor of Osteopathic Medicine degree from the University of North Texas Health Science Center at Fort Worth Texas College of Osteopathic Medicine. He was named to the Dean’s List at TCOM. Dr. Crowder completed his Residency in Anesthesiology at the University of Texas Health Science Center at San Antonio. He is board certified by the American Board of Anesthesiology.

As a native of North Texas, Dr. Crowder is very happy to have joined Metropolitan Anesthesia Consultants and practice in his home community. Dr. Crowder is a proud husband and father to two children. He is an active member of the Cross Timbers Community Church in Argyle. He enjoys reading, movies, cooking, handiwork, and playing or watching sports, especially college football.

Donnie Culpepper

Dr. Culpepper joined Metro Anesthesia in 2003 and currently serves as a member of the Metro Political Action Committee.

Dr. Culpepper completed medical school as Texas Tech University Health Science Center School of Medicine. He completed his Residency in Anesthesiology at University of Tennessee College of Medicine.

Pranav Deshpande

Dr. Deshpande joined Metro Anesthesia in November 2021. He is board certified by the American Board of Anesthesiology and a member of the American Society of Anesthesiologists, Texas Society of Anesthesiologists, Dallas County Medical Society, and the American Society of Regional Anesthesia and Pain Medicine. Dr. Deshpande is a current member of the Metro Political Action Committee.

attended medical school at St. Matthew’s University and completed his anesthesiology residency at the University of Miami/Jackson Memorial Hospital, where he was awarded Cardiac Anesthesiology Resident of the Year. Training sites included Ryder Trauma Center, Lennar Foundation Medical Center, Miami VA Hospital, Nicklaus Children’s Hospital, and Bascom Palmer Eye Institute. He continued his training and completed a fellowship in Regional Anesthesia and Acute Pain Medicine at The University of Miami, where he was awarded Fellow of the Year for the Department of Anesthesiology. 

In his free time, Dr. Deshpande enjoys staying active, watching sports (particularly the Tampa Bay Buccaneers), and spending time with family and friends.

Craig S. Fisher

Dr. Fisher joined Metro Anesthesia in 2004.

After receiving his undergraduate degree from University of Oklahoma, Dr. Fisher attended medical school at Oklahoma State University. He completed his internship and Residency in Anesthesiology at Texas A&M Health Science, Scott and White Hospital. Dr. Fisher is board certified by the American Board of Anesthesiology and a member of American Medical Association, American Society of Anesthesiologists, Texas Society of Anesthesiologists and Dallas County Anesthesiology Society.

Dr. Fisher is married with two children and enjoys foreign places and languages. He fluently speaks French, Spanish and Swedish. His hobbies include snowboarding, scuba, surfing and hiking.

Prisila Foss

Dr. Foss has been with Metro Anesthesia since 2018. She is a member of the American Society of Anesthesiologists, the Texas Society of Anesthesiologists, the Texas Medical Association, and the Dallas County Medical Society.  She’s also a current member of the Metro Political Action Committee.

Dr. Foss attended medical school at the University of Texas – Houston, where she also completed her anesthesiology residency. 

In her free time, Dr. Foss enjoys traveling, reading, and spending time with her family. She is also committed to volunteering as an anesthesiologist for the non-profit group Faith in Practice, several times a year.

Tabitha Foster

Dr. Foster joined Metro Anesthesia in 2013 and serves as a member of the Marketing Committee and the Metro Political Action Committee.

A third generation native Texan, Dr. Foster graduated cum laude from West Texas A&M University in her hometown of Canyon with special honors in biology. She continued her medical education at The University of Texas Southwestern Medical School in Dallas. Her internship and her Residency in Anesthesiology were completed at The University of Kansas School of Medicine in Wichita. She is board certified by the American Board of Anesthesiology and has been licensed as a Texas physician since 1993. She is a member of the American Society of Anesthesiologists, Texas Medical Association, Texas Society of Anesthesiologists, and Dallas County Medical Society.

Interests include special needs children and adults where she has done volunteer work as well as served as a board member for Nonpareil, an advanced education institute in technology for people on the autism spectrum. With her husband and two children, she is active in Firewheel Church in Garland and participates in the Engage Hope Here projects in her local community.

Recreational activities include attending her children’s sports and fine arts events, hosting frequent gatherings of friends and family, and traveling. Her family is currently pursuing a goal of visiting all 50 states, for education and enjoyment of our great country.

Tony Garcia

Dr. Garcia attended medical school at the University of Texas-Houston Medical School.  He completed his Anesthesiology residency at the University of Texas-Houston Anesthesiology. He is a member of the American Society of Anesthesiologists and the Texas Society of Anesthesiologists. He is currently a member of the Metro Political Action Committee.

In his free time Dr. Garcia enjoys fly fishing, snowboarding, jogging, and golf.

John F. Geiser

Dr. Geiser joined Metro Anesthesia in 2003 and currently serves as a member of the Peer Review Committee and Recruiting Committee and serves as Chair on both the Compensation Committee and the Quality Assurance Committee. He has held academic appointments at Harvard Medical School (as an assistant professor), Southern Illinois University School of Medicine and at UT Southwestern. He has also authored numerous scientific publications.

As a “James Scholar,” Dr. Geiser graduated from the University of Illinois College of Medicine. He completed his Residency in Anesthesiology at Harvard Medical School, and is fellowship- trained in cardiothoracic anesthesia and critical care medicine from the University of New South Wales in Sydney, Australia.

Dr. Geiser is board certified by the American Board of Anesthesiology and credentialed in Transesophageal Echocardiography. He is a member of the American Society of Anesthesiologists, International Society of Research in Anesthesiology, Society of Cardiothoracic Anesthesiologists, Texas Society of Anesthesiologists and Dallas Society of Anesthesiologists.

Dr. Geiser donates his time to the Special Olympics and the Union Gospel Mission in Dallas.

Jenelle Germany

Dr. Germany joined Metro Anesthesia in 2006, and currently serves as a member of the Scheduling Committee and as Chair of the Marketing Committee.

A graduate of The University of Texas at Houston Medical School, Dr. Germany completed her Residency in Anesthesiology at Memorial Hermann Hospital, an affiliated hospital of The University of Texas at Houston Health Sciences Center. Dr. Germany is board certified by the American Board of Anesthesiology and is a member of the American Society of Anesthesiologists, Texas Society of Anesthesiologists and Dallas County Anesthesia Society.

In her spare time, Dr. Germany enjoys spending time with her family, running, and traveling.

Srikanth Givvimani

Dr. Givvimani joined Metro in January 2022.  He is board certified by the American Board of Anesthesiology.

Dr. Givvimani attended medical school in India, and completed his anesthesiology residency at SUNY Downstate Health Sciences University in New York.  Prior to his medical education, he received a PhD in Physiology a the University of Louisville – Kentucky. Dr. Givvimani is a current member of the American Medical Association and the American Society of Anesthesiologists.

In his free time, Dr. Givvimani enjoys gardening, cooking, and spending time with family and friends.

Richard C. Haldeman

Dr. Haldeman joined Metro Anesthesia in 1995 and serves as a member of the Peer Review Committee, Compensation Committee, and the Metro Political Action Committee.

A graduate of the University of Kansas Medical College, Dr. Haldeman also completed his Residency in Anesthesiology there in 1995. Dr. Haldeman is board certified by the American Board of Anesthesiology and is a member of the American Society of Anesthesiologists, Texas Society of Anesthesiologists and Dallas County Anesthesia Society.

Dr. Haldeman is married with two children and enjoys coaching multiple teams and participating in all outdoor activities.

Christopher Hayes

Dr. Hayes joined Metro Anesthesia in 2013 and serves on the Compliance Committee, the Marketing Committee, and the Metro Political Action Committee.

Dr. Hayes completed his undergrad at Texas Tech University with his degree in Biology and a minor in Chemistry. He completed his Residency in Anesthesia at West Pennsylvania/Allegheny Health System in Pennsylvania where he was elected Chief Resident. Dr. Hayes is licensed by the state board of Texas and is board certified by the American Board of Anesthesiology. He is currently a member of the American Society of Anesthesiologists, Dallas County Medical Society and Texas Society of Anesthesiologists. Dr. Hayes currently serves on the Policies and Procedures Committee at Texas General Hospital.

In his free time, Dr. Hayes enjoys fishing, golfing, traveling and spending time with his friends and family. Dr. Hayes is a proud father to 3 children, and is married to Dr. Jody Hayes, who is a Radiologist at UT Southwestern in Dallas.

H.A. Tillmann Hein

Dr. Hein is one of the founders of Metro Anesthesia and currently serves on the Compliance Committee and Metro Political Action Committee.

After graduating with a degree in pharmacy from the Westfälische-Wilhelms-Universität, Dr. Hein obtained his medical degree and Ph.D. in medicine from the Freie Universität, Berlin, Germany. He completed anesthesiology residencies both in Germany and at Parkland Memorial Hospital in Dallas, TX.

Dr. Hein is board certified in the European Union and by the American Board of Anesthesiology. He is an active member of numerous scientific societies including: American Society of Anesthesiologists (Delegate to House of Delegates from Texas, Committee on Quality Management and Departmental Administration), Texas Society of Anesthesiologists (President 2011-2012), Dallas County Anesthesiology Society (President 1991-1992), International Anesthesia Research Society, Society for Cardiovascular Anesthesia, Deutsche Gesellschaft für Anästhesie und Intensivmedizin, Ärztekammer Westfalen-Lippe, Internationale Sepsis Gesellschaft (Life Member), Sepsis Stiftung (Founder, Member Kuratorium 2011-date), Rudolf-Frey-Gesellschaft (by invitation),Dallas County Medical Society, Texas Medical Association, American Medical Association, National Physicians Council For Healthcare Policy (Co-Chair for Anesthesiology 2015-date), Texas Surgical Quality Collaborative (Chair of the Board 2011-date). On a lighter side, for the entertainment of his patients, he wrote a song: https://itunes.apple.com/us/album/your-life-in-our-hands-musical/id924204135?i=924204138

Dr. Hein is married with two adult children and five grandchildren. He has a passion for liberal arts and is a past president of the Dallas Goethe Center, and a past chairman on the Texas German Day Council. As an amateur constitutional scholar, Dr. Hein contributed to a collection of the constitutions of the world by discovering in the archives of the Mexican Department of Defense a copy of the long lost draft for the constitution of the Republic of the Rio Grande whose flag was one of the seven flags that flew over Texas (not six as commonly believed). Dr. Hein enjoys exercising for physical fitness, and has annually won the German Sports Medal in Gold 9 times.

Erin Highfill

Dr. Highfill joined Metro in August 2019.  She is a member of the American Society of Anesthesiologists and is board certified by the American Board of Anesthesiologists. She currently serves as a member of the Metro Political Action Committee.

Dr. Highfill received her undergraduate degree from the University Texas at Austin.  She attended medical school at the University of Texas Medical Branch at Galveston and completed her anesthesia residency at Beth Israel Deaconess Medical Center in Boston.  She is a current member of the Texas Medical Association and a member of the Alpha Omega Medical Society.

In her free time, Dr. Highfill enjoys running and traveling, especially to national parks.

Paul Ryan Hoffmann

Dr. Hoffmann joined Metro in September 2024. 

Dr. Hoffmann attended medical school at Texas A&M University, and completed his anesthesiology residency at the University of Michigan.  He is a current member of the American Medical Association, the American Society of Anesthesiologists, the Texas Medical Association, and the Texas Society of Anesthesiologists.

In his free time, Dr. Hoffmann enjoys running, playing guitar, traveling, attending concerts, and spending time with friends and family.

Andy R. Hollenshead

Dr. Hollenshead joined Metro Anesthesia in 2007, and currently serves as a member of the Recruiting Committee, the Metro Political Action Committee, and Scheduling Committee.

He graduated summa cum laude from Texas A&M University with a bachelors in Biomedical Science. Dr. Hollenshead attended medical school and subsequently completed his Residency in Anesthesiology at The University of Texas Medical School at Houston located in the Texas Medical Center. Training sites included Memorial Hermann Hospital, Texas Heart Institute at St. Luke’s Episcopal Hospital, MD Anderson Cancer Center, Texas Children’s Hospital, DeBakey Heart Center at Methodist Hospital and LBJ General Hospital. Dr. Hollenshead is board certified by the American Board of Anesthesiology and licensed by the Texas Medical Board.

Dr. Hollenshead is actively involved in the Texas Society of Anesthesiologists and is a member of the American Society of Anesthesiologists, Dallas County Medical Society, and the Dallas County Anesthesia Society.

In his free time, Dr. Hollenshead enjoys skiing and watching Formula 1 racing. He also enjoys traveling with his wife and two children.

Rafat Hossain

Dr. Hossain joined Metro in September 2025.  He is currently working towards his board certification from the American Board of Anesthesiology.

Dr. Hossain attended medical school at Lincoln Memorial University – DeBusk School of Osteopathic Medicine, and completed his anesthesiology residency at the University of Texas Houston Health – McGovern College of Medicine.  He is a current member of the American Medical Association, the American Society of Anesthesiologists, and the Texas Society of Anesthesiologists.

In his free time, Dr. Hossain enjoys traveling, trying out new sushi restaurants with his wife, playing/watching soccer, and hanging out with his cat, Miso.

Roy Ivy III

Dr. Ivy joined Metro Anesthesia in July of 1999.

A graduate of University of Texas Southwestern Medical School, Dr. Ivy remained in Dallas to complete his Residency in Anesthesiology at Parkland Memorial Hospital. Dr. Ivy is board certified by the American Board of Anesthesiology, and is a member of the American Society of Anesthesiologists, Texas Society of Anesthesiologists and Dallas County Anesthesia Society. He has served as a delegate to the Texas Society of Anesthesia for several years.

Joe H. Jackson

Dr. Jackson joined Metro Anesthesia in 2011. Dr. Jackson is board certified by the American Board of Anesthesiology. He is a member of the American Society of Anesthesiologists, the Texas Society of Anesthesiologists, and the Dallas County Medical Society. He is a current member of the Metro Political Action Committee.

Born and raised in Waco, Texas, Dr. Jackson completed his undergraduate degree at Baylor University, and obtained his M.D. and MBA at Texas Tech School of Medicine in Lubbock, Texas. Dr. Jackson completed his Internship in Internal Medicine at The University of Texas Southwestern in Dallas, and his Residency in Anesthesiology at the Baylor college of Medicine in Houston.

During his free time, Dr. Jackson, enjoys spending time with his wife, family, and friends, playing basketball, skiing, and travelling.

Zachary Jones

Dr. Jones joined Metro Anesthesia in 2014 and serves as a member of the Marketing Committee, Recruiting Committee and is the head of the Metro Political Action Committee.

Dr. Jones obtained a Bachelor of Arts degree in Biology from University of Texas- Austin and completed both his medical school and Residency in Anesthesia at University of Texas- Houston. During his residency, Dr. Jones was elected Chief Resident. Dr. Jones is licensed in the state of Texas and is board certified by the American Board of Anesthesiology. He is currently a member of the American Society of Anesthesiologists, Texas Medical Association, Dallas County Medical Society, Dallas County Anesthesia Society and Texas Society of Anesthesiologists.

In his free time, Dr. Jones enjoys spending time with his wife and watching Team USA and FC Dallas soccer. He currently plays cello in the New Texas Symphony Orchestra of Dallas. He previously played in the Texas Medical Center Orchestra in Houston and had the privilege of performing at Carnegie Hall in 2013.

Harris Khan

Dr. Khan joined Metro Anesthesia in 2016 after completing both medical school and residency at the Medical College of Wisconsin. He is currently board certified by the American Board of Anesthesiology and is a member of the American Medical Association. He is co-chair of Metro’s Marketing Committee and also sits on the Multimodal Analgesia Team at Medical City Arlington and the Medication Diversion Team at Medical City Lewisville.

Dr. Khan is married with two kids. In his free time, he enjoys traveling, sports, and food. He and his wife, Jessica, run a popular instagram food blog called Dallas Eat and Play.

Daniel Kim

Dr. Kim joined Metro in August 2024.  He is currently certified by the American Board of Anesthesiology.

Dr. Kim received his undergraduate degree from Emory University.  He attended medical school at the Virginia Commonwealth University School of Medicine and completed his anesthesiology residency at the University of California Irvine.  He is a current member of the American Society of Anesthesiologists and the Texas Society of Anesthesiologists.

Houman Koopaei

Daniel Koshy

 
Dr. Koshy joined Metro Anesthesia in 2014. He is a member of the Management Committee and the Metro Political Action Committee. Dr. Koshy is board certified by the American Board of Anesthesiology and is a member of the American Society of Anesthesiologists and Texas Medical Association.

Dr. Koshy completed medical school at Kasturba Medical College in India and went on to complete his Residency in Anesthesiology at the Medical College of Wisconsin. He spent the early part of his career practicing anesthesia in Milwaukee, WI but has called Texas home since then. He

In his free time, Dr. Koshy enjoys cooking and traveling with his wife Lynda and their three children, Aaron, Fiona and Ethan.

Min Kwon

Dr. Kwon joined Metro in August 2022. He is a member of the American Society of Anesthesiologists and the Texas Society of Anesthesiologists. He is also a current member of the Metro Political Action Committee.

Dr. Kwon attended medical school at the Medical College of Georgia and completed his anesthesia residency at Boston University School of Medicine.

In his free time, Dr. Kwon enjoys traveling, skiing, snowboarding, soccer, and is a big fan of English Premier League soccer.

Lawrence E. Lankford

Dr. Lankford joined Metro Anesthesia in 1992 and in the past has served on the Executive Board. He is a current member of the Metro Political Action Committee.

Dr. Lankford earned his undergraduate degree at University of Texas in Austin. He also holds a master’s degree in medical science from Emory University. Dr. Lankford graduated with his medical doctorate from Medical College of Georgia. He completed his Residency in Anesthesiology at Medical College of Georgia Hospitals and Clinics.

Dr. Lankford has invested many years in the practice and application of anesthesiology, and is certified by the American Board of Anesthesiologists. Dedicated to the highest standards of his profession, he sustains an abiding commitment to the health and well-being of each of his patients. His professional affiliations include American Society of Anesthesiologists; Texas Society of Anesthesiologists; Texas Medical Association; and Dallas County Medical Society.

Dr. Lankford and his wife, Robin, have four children and eight remarkable grandchildren.

Jared lewis

Dr. Lewis joined Metro in August 2025.  He is currently working towards his board certification from the American Board of Anesthesiology.

Dr. Lewis attended medical school at UT Health San Antonio, and completed his anesthesiology residency at the Brown Anesthesiology. 

In his free time, Dr. Lewis enjoys long distance backpacking, rock climbing, and binge reading.

Timothy Liu

Dr. Liu joined Metro Anesthesia in 2010 and serves as IT Director. Dr. Liu graduated from the University of Texas at Austin with a B.S. in Chemical Engineering, and attended medical school at Texas A&M College of medicine in College Station. He remained at Scott and White Hospital to complete his Residency in Anesthesiology where he was elected chief resident during his final year.

Dr. Liu board certified by the American Board of Anesthesiology, and he is currently a member of the American Society of Anesthesiologists, the Texas Society of Anesthesiologists, and the Dallas County Medical Society.

A native of New Jersey, Dr. Liu moved to Texas in 1994. He enjoys working out, camping/hiking, scuba diving, and watching movies; but most of all, in his free time he enjoys spending time with family and friends.

Matthew R. Mahowald

Dr. Mahowald joined Metro Anesthesia in 2009, and currently serves as a member of the Marketing Committee.

A graduate of the University of South Dakota School of Medicine, Dr. Mahowald completed his Residency in Anesthesiology training at the University of Rochester Medical Center/Strong Memorial Hospital in Rochester, NY. Dr. Mahowald received the Robert Lawrence, M.D. “First Resident” award during his residency training.

Dr. Mahowald is licensed by the Texas Medical Board and is board certified by the American Board of Anesthesiology. He is a member of the American Society of Anesthesiology, Texas Society of Anesthesiologists, and the Dallas County Anesthesia Society.

Dr. Mahowald is a native of Watertown, SD, and is married with three children. He enjoys golf, basketball, football, and spending time with family and friends.

Mark A. Margolis

Dr. Margolis joined Metro Anesthesia in the fall of 2005, and currently serves as Chair of the Compliance Committee. He’s also member of the Metro Political Action Committee.

Dr. Margolis received a Bachelor of Arts in Biochemistry from Connecticut College and is a graduate of Tulane University School of Medicine and completed his anesthesiology residency at Tulane University and served as Chief Resident. Prior to moving to Dallas, he was a member of the clinical faculty of both Tulane University School of Medicine and Louisiana State University School of Medicine. Dr. Margolis had a full-time clinical practice at Touro Infirmary from 1996 through 2005. He has been board certified by the American Board of Anesthesiology since 1996 and is an active member in the American Society of Anesthesiologists, Texas Society of Anesthesiology, Dallas County Anesthesia Society, and Dallas County Medical Society. He serves as the Texas Anesthesiology representative to the Medicare Contractor Advisory Committee. He also serves on hospital committees at multiple facilities.

Happily married for over 25 years, Dr. Margolis has two grown daughters. In his spare time, he enjoys men’s and mixed doubles tennis, enology, fine arts and sports including The New Orleans Saints. Prior to coming to Dallas, he and his family were very involved with in the Jewish community of New Orleans, Touro Infirmary and other philanthropic and charitable organizations. Since, joining the Dallas community he and his family have continued their community involvement and philanthropy.

Varghese Matthews

Dr. Varghese Matthews joined Metro Anesthesia in 2017 and serves as the Chief of Anesthesia at Medical Center of McKinney. He also serves on the Clinical Compliance Committee, Standards Committee and the Finance Committee. Dr. Matthews serves as the current Treasurer of the Management Committee and is a member of the Metro Political Action Committee.

Dr. Matthews completed his undergraduate studies at The University of Texas – Austin in Biomedical Engineering. He received his medical degree from Texas A&M Health Science Center. He went on to complete his residency in Clinical Anesthesiology at Baylor College of Medicine in the prestigious Texas Medical Center. Clinical exposure at Ben Taub General Hospital, Michael E. DeBakey VA Medical Center, M.D. Anderson Cancer Center, Texas Heart Institute, and Texas Children’s Hospital allowed him to gain extensive knowledge in all aspects of anesthetic sub-specialties and care of a wide variety of patient populations.

Dr. Matthews is licensed by the Texas Medical Board and is board certified by the American Board of Anesthesiology.

He is a member of the American Society of Anesthesiologists, Texas Society of Anesthesiologists, American Society of Regional Anesthesia and Pain Medicine, Dallas County Medical Society, and Texas Medical Association.

During his free time he enjoys trying various cuisines and traveling with his family.

Todd McCaleb

Dr. McCaleb joined Metro Anesthesia in 1996, and currently serves as a member of the Credentialing Committee, Scheduling Committee and Compensation Committee.

After graduating with honors from the University of Oklahoma where he majored in zoology and chemistry, he continued his education at the University of Oklahoma School of Medicine. He completed his Residency in Anesthesiology at Kansas University in Kansas City, where he was awarded the Robert D. Dripps, M.D. Memorial Award as the outstanding graduate resident in anesthesiology. Dr. McCaleb is board certified by the American Board of Anesthesiology and a member of the American Society of Anesthesiology, Texas Society of Anesthesiologists, and Dallas County Anesthesia Society. Dr. McCaleb is Chief of Anesthesia at Rockwall Surgery Center and Baylor Scott & White Medical Center Lake Pointe.

Dr. McCaleb and his wife, Tricia, have three children.

David Meng

Dr. Meng joined Metro in August 2024.  He is currently working towards his board certification from the American Board of Anesthesiology.

Dr. Meng received his undergraduate degree in Biochemistry from the University of Texas at Austin.  He attended medical school at William Car University College of Medicine and completed his anesthesiology residency at the University of Texas Health Science Center – Houston.  He is a current member of the American Society of Anesthesiologists, the Texas Society of Anesthesiologists, and the Dallas County Anesthesiology Society.

In his free time, Dr. Meng enjoys running, trying out new restaurants in Dallas, and rooting for the Dallas Mavericks.

Christopher Merchun

Dr. Merchun joined Metro in August 2020.  He is board certified by the American Board of Anesthesiology. He is a member of the American Society of Anesthesiologists, the Texas Medical Association, the Dallas County Medical Association, and the American Medical Association. He is also a member of the Metro Political Action Committee.

Dr. Merchun received his undergraduate degree from Indiana University and attended medical school at the Indiana University School of Medicine.  He completed an internship in General Surgery at the Medical University of South Carolina, and residency at the Indiana University School of Medicine. 

In his free time Dr. Merchun enjoys skiing, traveling, going to concerts, and discovering new restaurants with his wife.

Chris Miller

Dr. Miller joined Metro Anesthesia in 2014 and serves on the Recruiting Committee, Marketing Committee, Metro Political Action Committee, and Quality Assurance Committee. He is a current member of the Management Committee.

Dr. Miller has his B.S. in Biomedical Engineering from Texas A&M. He completed both medical school and his Residency in Anesthesiology at the University of Texas- Houston. Dr. Miller is licensed in the state of Texas and is board certified by the American Board of Anesthesiology. He is currently a member of the American Society of Anesthesiologists, Texas Medical Association, Dallas County Medical Society and Texas Society of Anesthesiologists. Dr. Miller currently serves as Chair of the Quality Committee at Texas General Hospital and Chief of Anesthesia at Texas General Hospital.

Dr. Miller is a proud husband and father. He enjoys spending his free time with his family, playing golf, and other outdoor activities such as running and skiing.

Bailey Monsour

Dr. Monsour joined Metro in August 2025.  She is currently working towards her board certification from the American Board of Anesthesiology.

Dr. Monsour received her undergraduate degree Tulane University.  She also attended medical school at Tulane University, and completed her anesthesiology residency at the University of Texas Houston – McGovern Medical School. 

In her free time, Dr. Monsour enjoys trying new restaurants, traveling, and spending time outside with her dog, Moose.

Andrew Moorman

Dr. Moorman joined Metro Anesthesia in August 2021. He is board certified by the American Board of Anesthesiology. Dr. Moorman is a member of the American Society of Anesthesiologists, the Society for Pediatric Anesthesia, and is also a member of the Metro Political Action Committee.

Dr. Moorman attended medical school at the University of North Texas Health Science Center – TCOM and completed his anesthesiology residency at the University of Texas Health Science Center at Houston. 

In his free time, Dr. Moorman enjoys playing with his children, exercising, baking, and brewing.

Scott Morales

Dr. Morales joined Metro Anesthesia in 2012 and serves on the Marketing Committee.

A graduate of the University of Texas Southwestern Medical Center at Dallas, Dr. Morales completed his Residency in Anesthesiology at Wake Forest Medical Center in Winston-Salem, North Carolina. Dr. Morales is board certified by the American Board of Anesthesiology. He is a member of the American Society of Anesthesiologists and Texas Society of Anesthesiologists, Dallas County Medical Society, the American Society of Regional Anesthesia, and the International Anesthesia Research Society.

Dr. Morales was born and raised in Texas. He married in the summer of 2021 and has three children and 2 stepchildren. He enjoys playing golf, photography, and hiking.

Garrett Morris

Dr. Morris joined Metro in August 2024.  He is currently working towards his board certification from the American Board of Anesthesiology.

Dr. Morris has an undergraduate degree in Microbiology from the University of Oklahoma. He attended medical school at the University of North Texas Health Science Center – TCOM, and completed his anesthesiology residency at the University of Texas Health Science Center at Houston.  He is a current member of the American Society of Anesthesiologists and the Texas Society of Anesthesiologists.

In his free time, Dr. Morris enjoys playing golf, hunting with his dog Tank, and spending time with his family.

Devin Musick

Dr. Musick joined Metro in August 2020.  He is board certified by the American Board of Anesthesiology. He is a member of the American Society of Anesthesiologists and the Texas Society of Anesthesiologists, and serves on the Metro Political Action Committee.

Dr. Musick received his undergraduate degree from Texas A&M University and attended medical school at the University of Texas at Houston.  He completed his Anesthesiology residency at the University of Texas at Houston, as well. 

In his free time Dr. Musick enjoys spending time with his wife, mountaineering, hiking, rock climbing, travel, and playing, coaching and watching rugby.

Trang Nguyen

Dr. Nguyen joined Metro in August 2025.  She is currently working towards his board certification from the American Board of Anesthesiology.

Dr. Nguyen attended medical school at the University of Kansas School of Medicine -Wichita and completed her anesthesiology residency at the Baylor College of Medicine.  She is a current member of the American Society of Anesthesiologists and the Texas Society of Anesthesiologists.

In her free time, Dr. Nguyen enjoys spending time with her husband & son, cooking, traveling, and skiing.

Taylor Nohrn

Dr. Nohrn joined Metro in August 2024.  She is currently working towards her board certification from the American Board of Anesthesiology.

Dr. Nohrn received her undergraduate degree from the University of Texas at Austin.  She attended medical school at the University of Texas Medical Branch at Galveston, where she also completed her Residency in Anesthesia.  She is a current member of the Texas Society of Anesthesiologists.

In her free time, Dr. Nohrn enjoys running, shopping, and cooking.

Monisha Parikh

Dr. Parikh joins Metro in September 2020.  She is board certified by the American Board of Anesthesiology.

Dr. Parikh received her undergraduate degree from Texas A&M University.  She attended medical school at Texas Tech Health Science Center – Paul Foster School of Medicine and completed her anesthesiology residency at the University of Texas Medical Branch.  She is a current member of the American Society of Anesthesiologists, the Texas Society of Anesthesiologists, the Society for Obstetric Anesthesia and Perinatology, and the International Anesthesia Research Society.

In her free time, Dr. Parikh enjoys spending time outdoors with her dog, traveling, watching sports, and is happy to be back in her native Dallas to spend time with her family and friends.

Muhammad Patel

Dr. Patel joined Metro Anesthesia in 1998.

Before completing his Residency in Anesthesiology and Fellowship in Cardio-Thoracic Anesthesia from University of Washington in Seattle in 1997, he was elected Fellow of the Royal College of Anesthetist (UK) in London. Dr. Patel was certified by the Board of American College of Anesthesiologists in 1995. He is a member of American Board of Anesthesiology, Texas Society of Anesthesiologists and Dallas County Anesthesia Society.

Dr. Patel is married with two children. He is actively involved in community activities and likes to read.

Jason Plata

Dr. Plata joined Metro in August 2024.  He is currently working towards his board certification from the American Board of Anesthesiology.

Dr. Plata received his undergraduate degree from the University of Texas at Dallas.  He attended medical school at the University of Texas Medical Branch and also completed his anesthesiology residency there.  He is a current member of the American Society of Anesthesiologists and the Texas Society of Anesthesiologists.

In his free time, Dr. Plata enjoys traveling, trying out new restaurants and bars, and spending time with his wife, family, and friends.

Clarissa Rane

Dr. Balli joined Metro in August 2019. She is board certified by the American Board of Anesthesiology. Dr. Rane serves as the current Management Committee Secretary and is a member of the Metro Political Action Committee. She is a member of the American Society of Anesthesiologists, the Texas Society of Anesthesiologists, and the Dallas County Medical Society.

Dr. Balli received her undergraduate degree from Rice University. She attended medical school at Texas A&M Health Science Center College of Medicine and completed her anesthesia residency at the University of Texas Health Science Center at Houston where she was Chief Resident.

In her free time, Dr. Balli enjoys cooking, traveling, and spending time with her husband, Dr. Mihir Rane, who is also an anesthesiologist at Metro Anesthesia.

Mihir Rane

Dr. Rane joined Metro in August 2019.  He is a member of the American Society of Anesthesiologists and board certified the American Board of Anesthesiology. He currently serves on the Metro Political Action Committee.

Dr. Rane received his undergraduate degree from the University of Texas at Austin.  He attended medical school at the Texas College of Osteopathic Medicine at the University of North Texas Health Science Center, and completed his anesthesia residency at the University of Texas Health Science Center at Houston.  He is a current member of the Texas Society of Anesthesiologists and the Dallas County Medical Society.

In his free time, Dr. Rane enjoys cooking, traveling, and occasional exercise (but not too much).

Akhil Rastogi

Dr. Rastogi joined Metro in July 2020.  He is board certified by the American Board of Anesthesiology. He is a current member of the American Society of Anesthesiologists, and a member of the Metro Political Action Committee.

Dr. Rastogi attended medical school at The University of Virginia. He completed his Anesthesiology residency at Maimonides Medical Center in Brooklyn, NY and received an anesthesiology fellowship from the University of Pittsburgh. 

Jeffrey Remster

Dr. Remster joined Metro in August 2020. He is board certified by the American Board of Anesthesiology. He is a current member of the American Society of Anesthesiologists, the Texas Society of Anesthesiologists, the Dallas County Anesthesiology Society, and the Texas Medical Association. Dr. Remster is also a member of the Metro Political Action Committee.

Dr. Remster received his undergraduate degree from Indiana University.  He attended medical school and completed his anesthesiology residency at the Indiana University School of Medicine. 

In his free time, Dr. Remster enjoys playing golf and soccer, hiking with his wife, son, and dog, skiing, trying out new restaurants, going to the lake, and spending time with family and friends.

Charlie Rew

Dr. Rew joined Metro in September 2022. He is a member of the Texas Society of Anesthesiologists and the Metro Political Action Committee.

He attended medical school at the University of Texas Southwestern Medical School and completed his anesthesiology residency at Baylor College of Medicine. 

In his free time, Dr. Rew enjoys playing tennis, guitar, ukulele, and traveling internationally.

Kerryn Mortimer Rock

Dr. Rock joined Metro Anesthesia in 2008, and currently serves as a member of the Management Committee, Compliance Committee, Credentialing Committee, Scheduling Committee, Marketing Committee, and the Metro Political Action Committee.

Dr. Rock received her medical degree from the State University of New York (SUNY) University at Buffalo School of Medicine. She completed her Residency in Anesthesiology at Yale-New Haven Hospital where she also served as chief resident. She completed a cardiothoracic anesthesiology fellowship at Yale University School of Medicine. Dr. Rock is Chief of Obstetric Anesthesia at Baylor Scott & White Medical Center Centennial.

Dr. Rock is board certified by the American Board of Anesthesiology and licensed by the Texas Medical Board. She is a member of the American Society of Anesthesiologists, the Society of Cardiovascular Anesthesiologists, the Dallas County Anesthesia Society, and the Texas Society of Anesthesiologists.

Dr. Rock is married with four children and resides in Plano.

Shelby Hanson Salmon

Dr. Salmon joined Metro Anesthesia in 2006.

Dr. Salmon completed her Residency in Anesthesiology at Yale New Haven Hospital, and then served as assistant clinical professor on staff at Yale. During this time, she was also the Chairman for the Temple Surgery Center Physician Review Committee.

Dr. Salmon is board certified by the American Board of Anesthesiology and is a member of the American Society of Anesthesiologists, Texas Society of Anesthesiologists and Dallas County Anesthesia Society. She serves on the Professional Activities Committee at Medical Center of Lewisville, as well. Dr. Salmon is Chief of Anesthesia at Baylor Regional Medical Center at Plano.

A Richardson native, she was pleased to move back home closer to friends and family when she joined Metro Anesthesia Consultants in 2006. She currently serves as a member of the Marketing Committee and Peer Review Committee.

Stephen Sarmiento

Dr. Sarmiento joined Metro in July 2018.  He is certified by the American Board of Anesthesiology. Dr. Sarmiento is a current member of the Management Committee and the Metro Political Action Committee.

Dr. Sarmiento graduated from Loyola Marymount University with a BS in Biology.  He attended medical school at Georgetown University School of Medicine.  He then completed his anesthesia residency at the University of Texas Southwestern Medical School where he was Chief Resident.  Dr. Sarmiento is currently a member of the Texas Society of Anesthesiologists, Texas Medical Association, Dallas County Anesthesiology Society, American Society of Regional Anesthesia and Pain Medicine, and the Society of Obstetric Anesthesia and Perinatology.

Dr. Sarmiento enjoys music, cars, traveling and exploring new restaurants.

Clark T. Saunders

Dr. Saunders joined Metro Anesthesia in 1993 He is the Director of Anesthesiology at Baylor Surgicare at Lewisville.

After attending the University of Texas Southwestern Medical School, he completed his Residency in Anesthesiology at the University of Texas Southwestern Medical Center and affiliated hospitals. He also attended the University of Dallas Graduate School of Management and received an MBA in health services management. Dr. Saunders is board certified by the American Board of Anesthesiology. He is a member of the American Society of Anesthesiologists, Texas Society of Anesthesiologists and International Anesthesia Research Society. He is also a member of the Metro Political Action Committee.

Dr. Saunders and his wife, Tammy, have four children.

Peter Shin

Dr. Shin received his medical degree from the University of Oklahoma College of Medicine.  He completed his Anesthesiology residency at the University of Oklahoma Health Sciences Center.  He is a member of the American Society of Anesthesiologists, the Texas Society of Anesthesiologists.

In his free time, Dr. Shin pending time and traveling with family, playing basketball, and collecting sports cards. He is also slowly learning the game of golf.

Stephen Shu

Dr. Shu joined Metro Anesthesia in 2015.

Dr. Shu obtained his BS in Electrical Engineering from the University of Texas at Austin. He attended medical school at UNT Health Science Center- TCOM and went on to complete his residency at The University of Texas Health Science Center San Antonio. Dr. Shu is licensed in the state of Texas and is board certified by the American Board of Anesthesiology. He is currently a member of the American Society of Anesthesiologists, Texas Society of Anesthesiologists, The American Medical Association and The American Osteopathic Board of Anesthesiology. He is also a member of the Metro Political Action Committee.

In his free time, Dr. Shu enjoys listening to music, reading about the latest tech gadgets and is a self-proclaimed movie buff. He and his wife enjoy traveling, discovering new restaurants, playing volleyball and tennis, and taking hikes with their two dogs. Dr. Shu also enjoys watching basketball (go Mavs!) and playing fantasy football. Being a Texas native before leaving for school, work and residency, he is thrilled to be back home.

Justin Shults

Dr. Shults joined Metro in April 2019.  He is board certified by the American Board of Anesthesiology.

Dr. Shults received his undergraduate degree from Texas A&M University.  He attended medical school at The University of Texas Medical School at Houston, where he also completed his residency.  He is a current member of the American Society of Anesthesiologists and the Texas Society of Anesthesiologists.

In his free time, Dr. Shults enjoys spending time with his wife and three children, traveling, and supporting his alma mater, Texas A&M University.

Matthew R. Siskowski

Dr. Siskowski joined Metro Anesthesia in 2009, and currently serves as a member of the Metro Political Action Committee.

A graduate of Texas Tech University with a Bachelor of Science in Biology, he received his medical degree from the University of Texas Health Science Center at San Antonio. He completed his Residency in Anesthesiology at The University of California San Diego. Dr. Siskowski is board certified by the American Board of Anesthesiology and is a member of the American Society of Anesthesiologists, Texas Society of Anesthesiologists, and the Dallas County Anesthesia Society.

Dr. Siskowski is active at the Prestonwood Baptist Church and in his free time, he enjoys running, softball, football, fishing and spending time with friends and family, especially his son.

Aditya Sistla

Dr. Sistla joined Metro in August 2020.  He is board certified by the American Board of Anesthesiology.

Dr. Sistla received his undergraduate degree from Western Illinois University.  He attended medical school at St. George’s University in Grenada and completed his anesthesiology residency at the Boston University Program at Boston Medical Center.  He is a current member of the American Society of Anesthesiologists and will soon be a member of Texas Society of Anesthesiologists. He is also a member of the Metro Political Action Committee.

In his free time, Dr. Sistla enjoys playing soccer, vegetable gardening, trekking, and mountain climbing (destinations include the Mount Everest base camp, the Himalayas, and Mt. Washington).

Carrie Sparkman

Dr. Sparkman joined Metro Anesthesia in 2015.

Dr. Sparkman completed her undergraduate degree at Southern Methodist University. She obtained her medical degree from UTMB and went on to complete her anesthesia residency at The University of Kentucky. Dr. Sparkman is licensed in the state of Texas and is currently in the process of becoming board certified by the American Board of Anesthesiology. She is currently a member of the American Society of Anesthesiologists, Texas Medical Association, Dallas County Medical Society and Texas Society of Anesthesiologists.

Dr. Sparkman is married and has one son. In her free time, she enjoys playing ice hockey, traveling, scuba diving and spending time with her family.

John Spieker

Dr. Spieker joined Metro Anesthesia in 1995, and currently serves as a member of the Management Committee, Credentialing Committee, Metro Political Action Committee, Call Schedule Committee and serves as Chair of the Peer Review Committee.

After graduating from The University of Texas at Austin, he attended medical school at The University of Texas Medical Branch in Galveston. He completed his Residency in Anesthesiology at the Kansas University Medical Center in Kansas City. He is a former assistant professor of anesthesiology at the Kansas University Medical Center and current clinical assistant professor of anesthesiology at the University of Texas Southwest Medical Center. He is board certified by the American Board of Anesthesiology recertified (MOCA) in 2008. He is a member of the American Society of Anesthesiologists, Texas Society of Anesthesiologists, and Dallas County Anesthesiologists Society.

Dr. Spieker has worked with various humanitarian organizations including Helps International in and Doctors Without Borders. In his free time, Dr. Spieker enjoys traveling, silviculture and spending time with family.

Todd Stamatakos

Dr. Stamatakos joined Metro in 2016. He is board certified by the American Board of Anesthesiology and is currently a member of the American Society of Anesthesiologists. He is also a member of the Metro Political Action Committee.

Dr. Stamatakos attended medical school at Drexel University College of Medicine. He then completed his residency in Anesthesiology at Georgetown University School of Medicine. His hospital affiliations i

In his free time, Dr. Stamatakos enjoys running, cooking, exploring the outdoors and spending time with his family and loved ones.

Haden Steffek

Dr. Steffek joined Metro Anesthesia in 2007, and currently serves as both Chief of Anesthesia and Chief of Staff at Texas Health Presbyterian Denton. He’s a current member of the Metro Political Action Committee.

A graduate of Texas Tech University Health Science Center, Dr. Steffek completed his residency in Anesthesiology at University Medical Center in Lubbock, Texas, where he was the Chief Resident. He is board certified by the American Board of Anesthesiology, and is a member of the American Society of Anesthesiologists, Texas Society of Anesthesiologists, Texas Medical Association, and Dallas County Medical Society.

Jamie A. Sunny

Dr. Sunny joined Metro Anesthesia in 2008, and currently serves as a member of the Management Committee and the Metro Political Action Committee.

Dr. Sunny earned her B.A. in Biology from the University of Texas at Austin and graduated from The University of Texas at Houston Medical School. She remained at the University of Texas at Houston to complete her Residency in Anesthesiology where she was elected Chief Resident during her final year. Training sites included Memorial Hermann Hospital, MD Anderson Cancer Center, Texas Children’s Hospital, Texas Heart Institute at St. Luke’s Episcopal Hospital, and LBJ General Hospital.

Dr. Sunny is board certified by the American Board of Anesthesiology. She is a member of the American Society of Anesthesiologists and the Texas Society of Anesthesiologists.

She is glad to be back in Dallas and enjoys spending time with her friends and family. Married with two children, she and her husband enjoy watching sports, especially the Dallas Cowboys and the Texas Longhorns.

Sannoor Surani Syed

Dr. Syed grew up in Waco, TX and received her undergraduate degree from Emory University.  She attended medical school St. George’s University and completed her anesthesiology residency at the Boston Medical Center program at Boston University.  She is a current member of the American Society of Anesthesiologists and the Society for Obstetric Anesthesia and Perinatology.

In her free time, Dr. Syed enjoys traveling with her husband, trying new foods, listening to audiobooks, coffee, working out at Orange Theory, and spending time with family and friends.

Rishi Taneja

Dr. Taneja joined Metro Anesthesia in 2008, and currently serves as a the Chairman of the Management Committee. He is also a member of the Peer Review Committee, Credentialing Committee, Scheduling Committee, the Metro Political Action Committee, and Call Schedule Committee.

Dr. Taneja earned his B.A. in Biology from Austin College and completed medical school at The University of Texas Southwestern Medical School in Dallas. He then traveled to Chicago for his internship and Residency in Anesthesiology at the University of Chicago Medical Center where he was selected to serve as Chief Resident during his final year. Upon completion of his residency training he returned to UT Southwestern Medical Center for a fellowship in Cardiovascular and Thoracic Anesthesiology. Dr. Taneja is board certified by the American Board of Anesthesiology and the National Board of Echocardiography. He is a member of the American Society of Anesthesiologists, the Society of Cardiovascular Anesthesiologists, and has presented at national meetings.

He is very happy to be back home in Texas and enjoys spending time with his family and friends, reading, and traveling. He and his wife have two daughters.

David D. Toung

Dr. Toung joined Metro Anesthesia in 2011 and serves on the Recruiting Committee, Quality Assurance Committee, Metro Political Action Committee, and Compliance Committee.
 
Dr. Toung graduated summa cum laude from Austin College in Sherman, Texas with Bachelors of Arts in both Spanish with Honors and Biochemistry. He graduated from Baylor College of Medicine as a presidential scholar and trained in Houston’s Texas Medical Center at sites including Ben Taub General Hospital, Michael E. DeBakey VA Medical Center, M.D. Anderson Cancer Center, Texas Children’s Hospital, Texas Heart Institute at St. Luke’s Episcopal Hospital, and The Methodist Hospital. After staying for an internship in internal medicine, he traveled to Boston to complete his Residency in Anesthesiology at Brigham and Women’s Hospital, a teaching affiliate of Harvard Medical School, with additional training sites at Children’s Hospital Boston, Faulkner Hospital, Hospital Alemán in Buenos Aires, and South Shore Hospital.

Dr. Toung is board certified by the American Board of Anesthesiology and licensed by the Texas Medical Board. He is an inductee in the Phi Beta Kappa and Alpha Omega Alpha honor societies as well as a member of the American Society of Anesthesiologists, Texas Society of Anesthesiologists, Dallas County Medical Society, and Texas Medical Association.

Born in Dallas to survivors of Cambodia’s Killing Fields, Dr. Toung is very happy to return home to be with family and friends as well as care for the people in the Metroplex. He enjoys volunteering and exploring the food, music, language, and healthcare from all corners of the globe.

Nina Tran

Dr. Tran joined Metro in August 2023.  She is currently certified by the American Board of Anesthesiology.

Dr. Tran received her undergraduate degree in Biochemistry from the University of Texas at Austin.  She attended medical school at the Texas A&M College of Medicine and completed her anesthesiology residency at Yale University – New Haven Hospital.  She is a current member of the American Society of Anesthesiologists and the Texas Society of Anesthesiologists.

In her free time, Dr. Tran enjoys hanging out with her husband and dog, Mango.  She loves cooking & baking, going out for a run with Mango, and exploring the DFW area.  When she’s not out, she enjoys curling up with a good thriller novel and a cup of coffee.

Melissa Villegas

Dr. Villegas joined Metro Anesthesia in 2016.

Dr. Villegas obtained her undergraduate degree from the University of Saint Thomas. She attended medical school at the University of North Texas Health Science Center in Fort Worth and completed her Residency at Memorial Hermann Texas Medical Center. Dr. Villegas is licensed in the state of Texas and is board certified by the American Board of Anesthesiology. She is currently a member of the American Society of Anesthesiologists, Texas Medical Association, Dallas County Medical Society, and Texas Society of Anesthesiologists. She is also a member of the Metro Political Action Committee.

Dr. Villegas is a proud wife and mother. She enjoys spending time with her family and enjoys outdoor activities in her free time.

Brittani Hale Wattiker

Dr. Hale joined Metro Anesthesia in 2015 and serves as a member of the Marketing Committee and the Metro Political Action Committee.

Dr. Hale graduated Summa cum laude from Vanderbilt where she received her B.A. in Molecular and Cellular Biology. She attended medical school at Baylor College of Medicine and graduated with honors. She was also a member of Alpha Omega Alpha Honor Medical Society during her time at Baylor. Dr. Hale went on to complete her Residency in Anesthesiology at Duke University.

Dr. Hale is licensed in both the state Texas and North Carolina and board certified by the American Board of Anesthesiology. She is currently a member of the American Society of Anesthesiologists, the Texas Medical Association, Dallas County Medical Society and the Texas Society of Anesthesiologists.

Being a Dallas native, Dr. Hale is very excited to be back in Dallas and enjoys spending time with her husband, family and friends. She also enjoys traveling and outdoor activities.

Mary West

Dr. West joined Metro in October 2019.  She is a member of the American Society of Anesthesiologists and the American Board of Anesthesiology. She is also a member of the Metro Political Action Committee.

Dr. West received her undergraduate degree from the University Dallas.  She attended medical school at the University of Texas Health Science Center at Houston and completed her anesthesia residency and fellowship at the Yale University School of Medicine.  She is a current member of the Texas Society of Anesthesiologists and the American Society of Regional Anesthesia and Pain Medicine.

In her free time, Dr. West enjoys playing violin in a community orchestra, cooking, running after her 4 kids, and reading.

Dawn Yan

Dr. Yan joined Metro Anesthesia in 2011 and serves on the Marketing Committee, Peer Review Committee, and the Metro Political Action Committee.

Dr. Yan graduated from the University of Kansas with a BA in human biology, and went on to attend the University of Kansas School of Medicine where she was awarded the Janet M. Glasgow-Rubin Achievement and inducted into the Alpha Omega Alpha Medical Honor Society. She completed a surgery internship at Harbor-UCLA Medical Center and a Residency in Anesthesiology at Johns Hopkins Hospital. Following her training, Dr. Yan did a fellowship in regional anesthesia at the Hospital for Special Surgery in NYC where she learned to specialize in peripheral nerve blocks and catheters, as well as spinals/epidurals, for orthopedic surgery.

Dr. Yan is board certified by the American Board of Anesthesiology and licensed by the Texas Medical Board. She is a member of the American Society of Anesthesiologists, American Society of Regional Anesthesia and Pain Medicine, Texas Society of Anesthesiologists, Texas Medical Association, and Dallas County Medical Society.

In her free time, Dr. Yan enjoys traveling, scuba diving, snowboarding, volunteering for international missions, attending music festivals, and spending time with friends and family.

Neil Yang

Dr. Yang joined Metro in September 2021.

He attended medical school at the University of Texas Medical Branch.  He completed his Anesthesiology residency at the University of Texas Medical Branch, as well.  He is a member of the American Society of Anesthesiologists, the Texas Society of Anesthesiologists, and the Texas Medical Association.

In his free time Dr. Yang enjoys playing bass guitar, listening to jazz music, playing tennis, discovering new sushi restaurants, and traveling with his family.  He is also a computer and technology hobbyist.

Dae Ik Yi

Dr. Yi joined Metro in August 2024.  He is currently working towards his board certification from the American Board of Anesthesiology.

Dr. Yi received his undergraduate degree from the University of Maryland – College Park.  He attended medical school at the VCU School of Medicine and completed his anesthesiology residency at the Stanford University.  He is a current member of the American Society of Anesthesiologists and the Texas Society of Anesthesiologists.

In his free time, Dr. Yi enjoys weightlifting, playing soccer, playing golf, swimming, traveling, and spending time with his family.

Jonathan Yuska

Dr. Yuska attended medical school at Kansas City University and completed his anesthesiology residency at the University of Iowa.  He received a Master’s degree in Public Health in Epidemiology from the University of Iowa.  He is a current member of the American Society of Anesthesiologists.

In his free time, Dr. Yuska enjoys playing tennis, running, baking elaborate desserts, and trying out new recipes.