Harry Sarles, MD

Board Certified, Internal Medicine and Gastroenterology

Primary Location

3144 Horizon Rd. Ste. 210
Rockwall, TX 75032
Monday – Friday
8:00 AM – 5:00 PM

Branch Offices

2nd Location
7150 N. President George Bush Hwy, Ste. 201 Garland, TX 75044
8:00 AM – 5:00 PM

About Physician

Dr. Sarles is a board certified gastroenterologist with extensive advanced experience in the field of gastroenterology and hepatology. He is currently the medical director and principal investigator for digestive health research Institute. He is directing trials in multiple fields of gastroenterology including inflammatory bowel disease, (Crohn's disease, ulcerative colitis), gastroparesis, irritable bowel syndrome, eosinophilic esophagitis, nonalcoholic steatohepatitis. Dr. Sarles personal interests are in inflammatory bowel disease (IBD), colon cancer prevention and early detection, and esophageal problems. He has extensive training and experience in all endoscopic procedures. He also offers a nonsurgical hemorrhoidal banding procedure in office to eliminate symptomatic hemorrhoids.

In addition to his clinical duties, Dr. Sarles has served as the past president of the American College of Gastroenterology and the Texas Society for Gastroenterology and Endoscopy.

Professional Affiliations

  • American Gastroenterological Association

Education and Training

  • Board Certified: Internal Medicine and Gastroenterology
  • Fellowship: Gastroenterology, V.A. Hospital, Phoenix, AZ
  • Residency: Internal Medicine, University of Texas Medical Branch, Galveston, TX
  • MD: University of Texas Medical Branch, Galveston, TX
  • Undergrad: University of Texas, Austin, TX

Facility Affiliations

  • Texas Health Presbyterian, Rockwall
  • City Hospital at White Rock
  • Preston Crossing Endoscopy Center

Spoken Languages

  • English

Awards and Recognition

  • Recipient, Texas Society for Gastroenterology and Endoscopy Marcel Patterson /Robert Nelson Career Service Award, September 17, 2005
  • Recipient, American College of Gastroenterology William D. Carey, MD board of governors College Leadership Award


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