Gastroenterologist talking to patient Gastroenterology blue

J. Guillermo Trabanino, M.D.


Ages Treated: 18+

Dr. J. Guillermo Trabanino will be retiring effective 01/31/2022 and will be referring all patients to Dr. Keith Fiman and Dr. Mozzam Sana.

Quick Facts:

  • Virtual Telemedicine Visits Available, Call For Details
  • Board Certified Gastroenterologist
  • Currently Accepting New Patients
  • Most Insurance Plans Accepted
  • Performs Colonoscopies

J. Guillermo Trabanino, M.D. Practices at the Following Locations

Sugar Land – HWY 6, TX 1111 Hwy 6, Ste 105, Sugar Land, TX 77478 (281) 491-9779 Request an appointment at this location
"$000 - $000",

About J. Guillermo Trabanino, M.D.

Why did you choose to specialize in Gastroenterology?

In Gastroenterology there is a blend of intellectual stimulation to problem solving conditions of internal medicine with the added advantage of interventional procedures. This will assist in the management of multiple digestive diseases in an area of rapid changing technology.

Do you have a specialty of interest within GI?

It is important for me to provide quality care with a personal approach to the diagnostic treatment and prevention of variety of gastroenterological conditions in particular colon cancer screening, esophageal reflux, non-surgical treatment of hemorrhoidal conditions.

Where did you study?

Medical School: Universidad Nacional de El Salvador, Internal Medicine
Residency: (Chief Resident) University of Rochester, New York
GI Fellowship: Baylor College of Medicine Houston Texas.

What certifications do you hold?

Board certified in Internal Medicine and Gastroenterology.

What do you and your family enjoy doing in your spare time?

Spending time with the grandchildren, travel, listening classical music, collecting Pre-Colombian Art, and enjoy the outdoors as well motorcycle riding around the world (i.e. hobbies, interests).

Do you have any special honors or recognitions in your medical career that you would like to share?

Past President of Texas Gulf Coast GI Society, Past President of the Salvadorian Society of Gastroenterology. Past President Texas Gulf Coast GI Society. Past President Harris County Medical Society Southwestern Branch and Named Best Doctors of America multiple years.

Do you fluently speak any other languages in addition to English?

Yes, Spanish.

Please list your professional affiliations.

American College of Gastroenterology, American Gastroenterology Association, Texas Society for Gastrointestinal Endoscopy, Texas Gulf Coast GI Society, and Harris County Medical Society.