Rockville Internal Medicine Group’s team of gastroenterologists provide consultation and continuing care for patients with digestive issues and digestive system disorders.

*RECALL ALERT* “The FDA recently released several safety alerts on ranitidine formulations, including the brand-name drug Zantac,” that were found to contain low levels of carcinogen. Our gastroenterologists recommend, if needed, to take Famotidine (Pepcid) instead of Ranitidine (Zantac). Please note that 20mg of Famotidine (Pepcid) = 150mg of Ranitidine (Zantac).


GI Patient Center. (2019, October 6). Talking to your patients about ranitidine. [Blog post]. Retrieved from


  • Upper Endoscopy
  • Colonoscopy (Hospital or Outpatient Centers ONLY)
  • Bacterial Overgrowth Test
  • Capsule Endoscopy
  • Flexible Sigmoidoscopy
  • Hemorrhoid Banding
  • Hydrogen Breath Test
  • H. Pylori Breath Test
  • Lactose Intolerance Test
  • Restech Pharyngeal pH Testing
  • Unsedated EGD

Note: These procedures can be performed in the office or at the hospital/outpatient center.



NOTE: The above documents available for download are in .pdf format.


March was colorectal cancer awareness month. Colorectal cancer is the second leading cause of cancer death in the U.S. when men and women are combined. And it doesn’t always cause symptoms. Please schedule an appointment with one of our Gastroenterology doctors today!

Providers in this Specialty:
Belen Tesfaye, MD
S. Grace Woo, MD
Siobhan Forbes, CRNP