A headshot of Guy Weiss.


  • Gastroenterology

Dr. Weiss practices general gastroenterology, with particular interests in gluten-associated disorders (including celiac disease and non-celiac gluten/wheat sensitivity), food allergies, and inflammatory bowel diseases. His research focuses on adherence to medical therapy and diet, gluten-associated disorders, IBD, and outcomes research. Dr. Weiss studied in the combined BMedSc/MD program at the Sackler School of Medicine, Tel Aviv University, Israel. He completed his internal medicine training at SUNY Buffalo, NY and served as a chief resident during his third year. He subsequently completed his gastroenterology fellowship at UCLA. During his training, Dr. Weiss developed the UCLA Celiac Collective, and after graduating, joined the Westwood faculty and was appointed as the UCLA Celiac Program Leader.

General Information



License Number

Hospital Affiliations

  • UCLA Medical Center
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