Guy A. Weiss, MD

Guy A. Weiss, MD

Gastroenterology
Primary Location
Westwood Digestive Diseases
100 Medical Plaza
345
Los Angeles, California 90024
Phone
Fax
310-206-4808

About

  • Director, Celiac Program

Dr. Weiss practices general gastroenterology, with particular focus on gluten-associated disorders—mainly celiac disease and non-celiac gluten sensitivity (NCGS)—food allergies and sensitivities; eosinophilic gastrointestinal disorders (EGIDs) including eosinophilic esophagitis (EoE) and eosinophilic gastritis/gastroenteritis/colitis (EG/EGE/EC); lymphocytic gastritis; microscopic colitis including lymphocytic and collagenous colitis; autoimmune enteropathy; mast cell activation syndrome (MCAS), and inflammatory bowel diseases. His research focuses on adherence to medical therapy and diet, gluten-associated disorders, 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 later joined the Westwood faculty as the UCLA Celiac Program Leader. He serves on the Medical Advisory Board of the Celiac Disease Foundation and is a manuscript reviewer for Clinical Gastroenterology and Hepatology and the American Journal of Clinical Nutrition. He is currently the Springer editor of "Diagnosis and Management of Gluten-Associated Disorders: A Clinical Casebook."

Education

Medical Board Certifications

Gastroenterology, American Board of Internal Medicine, 2016
Internal Medicine, American Board of Internal Medicine, 2013

Fellowship

UCLA School of Medicine, 2016

Residency

SUNY Health Science Center at Buffalo, 2013

Internship

SUNY Health Science Center at Buffalo, 2011

Degree

Sackler School of Medicine, Tel Aviv University, MD, 2009

Hospital Affiliations

Ronald Reagan UCLA Medical Center

Videos

An update on celiac disease

Research

Interests

  • Celiac disease
  • Non-celiac gluten sensitivity
  • Outcomes research
  • Adherence to therapy
  • Inflammatory bowel diseases (IBD)

Publications

Link to Dr. Weiss' PubMed publications

Select Conference Presentations

  1. Weiss GA, Jaffe N, Ben Ami Shor D, Grotts J, Lackner L, Esrailian E, Crowe S, Chang L. Evaluation of the Patient Reported Outcomes Measurement Information System (PROMIS) in Celiac Disease, American College of Gastroenterology Annual Meeting, Las Vegas, NV, October 2016. Upcoming Poster Session
  2. Hoang-Ngoc Tran D, Ha C, Ho W, S. Mattai A, Oikonomopoulos A, Lacey P, Weiss GA, Hommes D, Koon HW. Mo1317 Circulating LL-37 Levels Accurately Indicate IBD Disease Activity and Presence of Strictures, Digestive Disease Week, San Diego, CA, May 2016. Poster Session
  3. Weiss GA, Crowe SE, Ambrus JL, Diagnosis of IgG-associated Wheat Allergy and Management with Elimination Diet, American College of Gastroenterology Annual Meeting, Honolulu, HI, October 2015. Poster Session
  4. Bikhchandani M, Weiss GA, Conklin J, IgG4-Related Esophagitis, American College of Gastroenterology Annual Meeting, Honolulu, HI, October 2015. Poster Session
  5. Suraweera D, Weiss GA, Mohammad S, Singhvi G, Gastric intramural pseudocyst, American College of Gastroenterology Annual Meeting, Honolulu, HI, October 2015. Poster Session
  6. Phan J, Weiss GA, Durazo F, Novel ABCB11 Missense Mutation Associated with Benign Recurrent Intrahepatic Cholestasis, CURE Annual Research Meeting, UCLA, Los Angeles, CA, March 2015. Poster Session And American College of Gastroenterology Annual Meeting, Honolulu, HI, October 2015. Poster Session
  7. Jamaluddin N, Weiss GA, Ho W, Asymptomatic Colonic Tuberculosis, American College of Gastroenterology Annual Meeting, Philadelphia, PA, October 2014. Poster Session
  8. Daily F, Weiss GA, Ho W, An Unusual Case of Obstructive Symptoms in a Patient with Sclerosing Peritonitis due to E. coli Peritonitis, ACP Southern California, Anaheim, CA. October 2014. Poster Session
  9. Weiss GA, Lackner, JM, Keller CE, Gudleski GD, Hauck C, Sitrin MD, Barriers to Compliance to Gluten-Free Diet in Celiac Disease: The Role of Depression and Motivation, Digestive Disease Week, Chicago, IL, May 2014. Poster Session
  10. Weiss GA, Lackner, JM, Keller CE, Gudleski GD, Hauck C, Sitrin MD, Barriers to Compliance to Gluten-Free Diet in Celiac Disease: The Role of Depression and Motivation, CURE Annual Research Meeting, UCLA, Los Angeles, CA, March 2014. Poster Session And American College of Gastroenterology Annual Meeting, San Diego, CA, October 2013. Poster Session

Select Lectures

  1. Celiac Disease and Gluten Sensitivity: Tough to Digest? 4th Annual GI Issues for the Primary Care Physician, UCLA Tamkin Auditorium, Oct. 8, 2016
  2. Beyond Celiac GI Fellowship Core Curriculum, Greater LA VA, Sep. 23, 2016
  3. UCLA Celiac Collective: Online Registry of Gluten-Associated Disorders GI Fellowship Program Research Night, UCLA Faculty Center, Jun. 1, 2016
  4. Hepatic Involvement in Celiac Disease Hepatology Case Review Conference, UCLA/RRUMC, Jan. 19, 2016
  5. Non-dietary Approach in Persistent Celiac Disease GI Journal Club, Cedars Sinai Medical Center, Dec. 8, 2015
  6. Narrow Band Imaging with Water Immersion Technique in Celiac Disease GI Journal Club, UCLA/Harbor, Aug. 10, 2015
  7. Tightening the Junctions: Larazotide for Persistent Celiac Disease GI Journal Club, UCLA, Center for Health Sciences, Jul. 17, 2015
  8. Non-Celiac Gluten Sensitivity: Fact or Fiction? GI Journal Club, Cedars Sinai Medical Center, April 30, 2015
  9. Non-Celiac Gluten Sensitivity Nutrition Journal Club, Greater LA VA, Sep. 23, 2014
  10. Gluten-related Diseases Nutrition Conference, West LA VA, Sep. 17, 2014

Awards

  • 2015 The Barbara and Joel Marcus Seed Grant Award, UCLA GI Fellowship
  • 2015 Fellowship2Leadership Travel Grant, ACG 2015
  • 2013 Thomas F. Frawley, MD, Residency Research Fellowship, Honorable Mention
  • 2001-2006 Antal Foundation, Tel Aviv University, Israel, Half tuition merit scholarship
  • 2001-2006 B'nai B'rith Scholarship, Tel Aviv, Israel
  • 2003 Municipality of Holon Scholarship For excellence in Sciences, Israel