John O'Brien Clarke III MD
Esophagus Disease, Gastrointestinal Functional & Motility Disorders
Clinical Professor, Medicine - Gastroenterology & Hepatology, Stanford School of Medicine
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300 Pasteur DrPalo Alto, CA 94304
Phone+1 650-723-4000
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Summary
- Dr. John Clarke is a gastroenterologist in Palo Alto, CA and is a Clinical Professor of Medicine at Stanford University, where he is also Director of the Esophageal Program and Vice-Chief of Education in the Division of Gastroenterology & Hepatology. He received his medical degree from Columbia University Vagelos College of Physicians and Surgeons and has been in practice 20 years. Internship, residency and fellowship were completed at Johns Hopkins University and he completed esophageal subspecialty training at Northwestern University. He specializes in esophageal disease and gastrointestinal functional & motility disorders. He has more than 100 publications and over 500 citings.
Education & Training
Johns Hopkins UniversityFellowship, Gastroenterology, 2004 - 2007- Johns Hopkins UniversityResidency, Internal Medicine, 1999 - 2002
Columbia University Vagelos College of Physicians and SurgeonsClass of 1999
Certifications & Licensure
CA State Medical License 2016 - 2026
MD State Medical License 2002 - 2016
American Board of Internal Medicine Internal Medicine- American Board of Internal Medicine Gastroenterology
Awards, Honors, & Recognition
- CMS Meaningful Use Stage 2 Certification Beacon Oncology 2014 Certified Module, Epic Systems Corporation, 2014, 2016-2017
- CMS Meaningful Use Stage 2 Certification EpicCare Ambulatory 2014 Certified EHR Suite, Epic Systems Corporation, 2014, 2016-2017
- CMS Meaningful Use Stage 1 Certification EpicCare Ambulatory - Core EMR, Epic Systems Corporation, 2014, 2016-2017
Publications & Presentations
PubMed
- Artificial Intelligence Chatbots for Dysphagia Patient Education: A Multi-Center International Expert Evaluation.Luisa Bertin, Afrin K Rahman, John Clarke, Amir Mari, Frank Zerbib
Neurogastroenterology and Motility. 2026-05-01 - Gatherings in Esophagology: Innovations and Future Directions in the Diagnosis and Management of Reflux Disease.Jennifer Cable, Robert Giuli, Mark R Fox, Rachel L Rosen, Luis R Valdovinos-García
Annals of the New York Academy of Sciences. 2026-03-01 - Autonomic Dysfunction in Gastroduodenal Disorders Evaluated Through Multimodal Non-Invasive Physiological Testing.Chris Varghese, Wendy Zhou, Armen Gharibans, Gabriel Schamberg, Sibylle Van Hove
The American Journal of Gastroenterology. 2026-02-12
Press Mentions
What Causes Heartburn?June 6th, 2021
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