JohnO'BrienClarkeIIIMD

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.