About
Dr. Gil Weitzman holds board certification in Internal Medicine, Gastroenterology, and Hepatology. He earned his undergraduate degree Magna Cum Laude from Binghamton University, where he was elected to Phi Beta Kappa. His medical degree came from The Mount Sinai School of Medicine, where he earned induction into the Alpha Omega Alpha Medical Honor Society and the Arthur Ross Award for Academic Excellence.
Dr. Weitzman completed both his Internal Medicine residency and his Gastroenterology and Hepatology fellowship at New York Presbyterian Hospital. During residency, he received the Daniel Libby Award of Excellence and the Cornell Medical School Excellence in Teaching award. He went on to serve as the sole Chief Resident for the Department of Medicine at New York Presbyterian Hospital. Today, he serves as Clinical Assistant Professor of Medicine at Weill Cornell Medical Center and as an Attending Physician at New York Presbyterian Hospital. Castle Connolly, New York Magazine, and Superdoctors have each recognized him as a Top Doctor in Gastroenterology.
Education & Training
Undergraduate
Binghamton University, BA, Magna Cum Laude, Phi Beta Kappa
Medical School
The Mount Sinai School of Medicine, MD
Residency
Internal Medicine, New York Presbyterian Hospital
Fellowship
Gastroenterology and Hepatology, New York Presbyterian Hospital
Certifications
Conditions Treated
Who is Dr. Weitzman right for?
Dr. Weitzman is a strong fit for adults seeking expert care for complex digestive and liver conditions. Patients dealing with GERD, Barrett's esophagus, Crohn's disease, ulcerative colitis, or hepatitis benefit from his triple board certification. His academic appointment at Weill Cornell and extensive procedural training make him well suited for patients who need advanced endoscopic evaluation. Those seeking a physician with recognized clinical excellence and deep subspecialty expertise will find him a strong match.
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Frequently Asked Questions
Dr. Weitzman treats a broad range of digestive and liver conditions. His clinical focus includes GERD, Barrett's esophagus, Crohn's disease, ulcerative colitis, SIBO, hepatitis, and cancers of the esophagus, stomach, and colon. His triple board certification in Internal Medicine, Gastroenterology, and Hepatology allows him to manage both digestive and liver disease with equal depth.
Yes, Dr. Weitzman holds board certification in all three of his specialties. He is board certified in Internal Medicine, Gastroenterology, and Hepatology. This combination of certifications reflects a high level of subspecialty training across digestive and liver medicine.
Dr. Weitzman earned his MD from The Mount Sinai School of Medicine. He then completed his Internal Medicine residency and his Gastroenterology and Hepatology fellowship at New York Presbyterian Hospital. During residency, the Department of Medicine selected him as sole Chief Resident.
Dr. Weitzman has received several distinctions throughout his career. Cornell Medical School honored him with its Excellence in Teaching award, and the Department of Medicine presented him with the Daniel Libby Award of Excellence. Castle Connolly, New York Magazine, and Superdoctors have each named him a Top Doctor in Gastroenterology.
Dr. Weitzman serves as an Attending Physician at New York Presbyterian Hospital and holds full admitting privileges there. He also serves as Clinical Assistant Professor of Medicine at Weill Cornell Medical Center. The practice additionally maintains an affiliation with Hospital for Special Surgery.
Dr. Weitzman performs colonoscopy, upper endoscopy, flexible sigmoidoscopy, wireless capsule endoscopy, and polypectomy. All procedures take place in the practice's on-site AAASF-certified endoscopy suite. An attending anesthesiologist is present for every case.
Doctor profile last updated March 21, 2026