Jeffrey Duman MD

Jeffrey Duman MD

TEL: 503-692-3750
FAX: 503-691-2324

“Providing thorough and thoughtful care begins with attentive listening to a patient’s concerns, discussing their preferences and goals, and determining the best treatment plan for each individual patient. No two people are alike and different approaches are often successful in achieving good health.”

Dr. Duman completed his undergraduate degree in biology at the University of Texas at Austin. He received his medical degree from the University of Texas Health Science Center at Houston and was accepted into the national medical honor society, Alpha Omega Alpha. He completed his three-year internal medicine residency, as well as a three-year gastroenterology fellowship at the University of Colorado Health Sciences Center. Dr. Duman has a special interest in disorders of the esophagus and improving colon cancer prevention.  Before joining The Oregon Clinic Gastroenterology South, he conducted research in several areas including gender disparities in liver transplantation recipients and outcomes of patients with gastrointestinal bleeding. Over the years, he has presented the results of his research at several national scientific meetings and published in leading scientific journals.

In his free time, Dr. Duman enjoys skiing, exercise, exploring the Northwest, and spending time with his wife and two children.

Other Activities

Member, Oregon Medical Association

Member, American College of Gastroenterology

Member, American Association for the Study of Liver Diseases

Member, American Society for Gastrointestinal Endoscopy


Fellowship, Gastroenterology and Hepatology, The University of Colorado Health Sciences Center, Denver, CO, 2011

Residency, Internal Medicine, The University of Colorado Health Sciences Center, Denver, CO, 2008

MD, The University of Texas Health Science Center at Houston, Houston, TX, 2005

BA, Biology, The University of Texas at Austin, Austin, TX, 2001




Portland Monthly Magazine, “Top Doctors”, 2018, 2023, 2024

Alpha Omega Alpha Medical Honor Society

Rocky Mountain Hospital Medicine Symposium Abstract Competition, First Place Poster, 2006