Dr David D. Clarke, MD is President of the Psychophysiologic Disorders Association.
He is also Assistant Director at the Center for Ethics and Clinical Assistant Professor of Gastroenterology Emeritus both at Oregon Health & Science University (OHSU) in Portland, Oregon, USA. He is Associate Faculty at Arizona State University,
Associate Faculty at the Cummings Graduate Institue, Clinical Advisor to the Stress Illness Recovery Practitioners Association (U.K.) and Clinical Lecturer with Pacific University in Oregon.
Dr. Clarke is board-certified in Gastroenterology and Internal Medicine and practiced Gastroenterology in Portland from 1984 – 2009. In that time, he conducted detailed interviews with over 7000 people whose symptoms were not explained by diagnostic testing.
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