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300 Pasteur DrStanford, CA 94305
Phone+1 650-723-4000
Dr. Keyashian is on Doximity
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Education & Training
University of ChicagoFellowship, Gastroenterology, 2011 - 2012
University of Southern California/Los Angeles General Medical Center (USC/LA General)Fellowship, Gastroenterology, 2008 - 2011
University of MichiganResidency, Internal Medicine, 2005 - 2008
University of California San Francisco School of MedicineClass of 2005
Certifications & Licensure
CA State Medical License 2008 - 2026
OR State Medical License 2012 - 2019
IL State Medical License 2011 - 2014
MI State Medical License 2005 - 2008
American Board of Internal Medicine Gastroenterology
Awards, Honors, & Recognition
- CMS Meaningful Use Stage 1 Certification EpicCare Ambulatory EMR, Epic Systems Corporation, 2013-2014
Publications & Presentations
PubMed
- Efficacy and Safety of Ustekinumab and Vedolizumab for Crohn's Disease of the Pouch.Sunhee Park, Kian Keyashian, Andrew Ho, David Limsui, Spencer Frost
Inflammatory Bowel Diseases. 2025-11-01 - Incidence of Anti-Drug Antibody Development in Older Adults with Inflammatory Bowel Disease Treated with Tumor Necrosis Factor Alpha Inhibitors: A Large Multicenter Co...Spencer Frost, Chetan Ambastha, Devin Patel, Andrew Roney, Alexandra Greb
Inflammatory Bowel Diseases. 2025-09-15 - Fistulizing and Stricturing Esophageal Crohn's Disease Requiring Esophagectomy.Christina Dimopoulos-Verma, Ashley Ott, Aaron Yeoh, Monique Barakat, David Bingham
ACG Case Reports Journal. 2025-02-01
Press Mentions
Can Medical Marijuana Improve Crohn’s Disease Symptoms?September 16th, 2022
Treating Crohn’s Disease: A Balancing ActFebruary 1st, 2021
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