CMHC Faculty Members

Faculty of Tarsus Medical Group are leaders in healthcare

Come see me speakCMHC Spring 2023, Taming the Flames: Inflammation in Cardiometabolic Disease

Stephen A. Harrison, MD

San Antonio, Texas

Stephen A. Harrison, MD

Internal Medicine and Gastroenterology


Dr. Stephen A. Harrison is board certified in internal medicine and gastroenterology and is the medical director of Pinnacle Clinical Research. During his 20-year service in the U.S. Army, Dr. Harrison served as the director of Graduate Medical Education at Brooke Army Medical Center, the associate dean for the San Antonio Uniformed Services Health Education Consortium, and as a gastroenterology consultant to the Army Surgeon General. He retired in 2016 with the rank of Colonel. Dr. Harrison is an associate editor of Hepatology and Alimentary Pharmacology and Therapeutics. He is a peer reviewer for over 20 medical journals and is known internationally for his research in nonalcoholic fatty liver disease (NAFLD).

Education and Training

  • Hepatology Fellowship, St. Louis University, 2003
  • Gastroenterology Fellowship, Brooke Army Medical Center, 2002
  • Residency, Brooke Army Medical Center, 1998
  • Internship, Brooke Army Medical Center, 1996
  • Medical Degree, University of Mississippi School of Medicine, 1995
  • Bachelor's Degree, University of Mississippi, 1991

Professional Highlights

  • Fellow, American College of Physicians
  • Fellow, American Association for the Study of Liver Diseases
  • Best Doctors List, SA Scene Magazine, 2017
  • Colonel William Crosby Superiority in Research Award: Army Chapter, American College of Physicians, 2008
  • Order of Military Medical Merit, 2007
  • Research Excellence in GI and Liver (REGAL) Award, 2006
  • Gastroenterology Core Curriculum Revision Committee, 2005
  • Key Clinical Faculty- Brooke Army Medical Center, Department of Medicine, 2005-2022
  • William Beaumont Clinical Research Award, 2003, 2007-2008
  • National AF ACP Meeting, Jay P. Sanford Award - Best Fellow Research Presentation, 2002
  • John L. Carpenter Award, Outstanding Resident Paper, 1998
  • First Place Podium Presentation, National Army ACP Meeting, 1997
  • Outstanding Junior Resident Award, 1997
  • RADM Dennis Wright Military Medical Student of the Year Award, 1995


Sign up to receive updates on educational opportunities, complimentary content, exclusive discounts, and more.