“I’m a partner with my patients. I can give the best information about the latest technology, what we can do and what I would recommend we do, but ultimately it’s a give and take and we need to discuss what the patient wants.”

Dr. Van Kleek received his undergraduate degree in biology at Willamette University and his medical degree at Oregon Health & Science University (OHSU). He remained at OHSU to complete his internship and residency in internal medicine followed by a three year fellowship in gastroenterology at the University of California, San Diego. Prior to joining The Oregon Clinic Gastroenterology South, he conducted research on liver cancer and improving the quality of colon cancer screening.

A fourth generation Oregonian raised in Tigard, he enjoys soccer, snow skiing, the outdoors, and spending time with his wife and three children.

Other Activities

Member, American Society for Gastrointestinal Endoscopy

Member, American Association for the Study of Liver Diseases

Oregon Gut Club


Fellowship, Gastroenterology, University of California, San Diego, San Diego, CA, 2008

Internship and Residency, Internal Medicine, Oregon Health & Science University, Portland, OR, 2005

MD, Oregon Health & Science University, Portland, OR, 2002

BS, Willamette University, Salem, OR, 1992




Managing Partner, Gastroenterology South Group, 2020-Present

Board Member, The Oregon Clinic, 2023-Present


Portland Monthly Magazine, “Top Doctors”, 2021