Biography & Education


"I believe communication between physician and patient is very important for the delivery of excellent health care. I want patients to be actively involved in the decision making for their own health care. I also feel patients should embrace preventative medicine and be pro-active in their health care decision making."

Dr. Lum graduated from the University of California at Davis. He completed his internship and residency at Oregon Health & Science University (OHSU) and later became Chief Resident for the Department of Medicine at OHSU. Dr. Lum completed a fellowship in gastroenterology at the University of California in San Francisco. He has received several honors and awards including the House Staff Teaching Award at OHSU and being inducted into the Alpha Omega Alpha Honor Medical Society. Dr. Lum is a member of the American Society for Gastrointestinal Endoscopy and a fellow in the American College of Gastroenterology. He formerly served as Associate Chief of Gastroenterology for the VA Northern California Healthcare System. 

In addition to spending time with his wife, 3 children and labradoodle, Dr. Lum is an avid road cyclist.  He enjoys the yearly ride from Seattle to Vancouver, BC with his cycling buddies!  Dr. Lum's other major interest is travelling to new places.  Although he's a fan of both the Blazers and Timbers, Dr. Lum grew up in Northern California and has always rooted for the SF 49ers, SF Giants and the GS Warriors!

Areas of expertise

Inflammatory Bowel Disease (IBD), Colonoscopy, Colon Cancer Screening and Prevention

  • BS, Physiology, University of California, Davis, CA, 1983
  • MD, University of California, Davis, CA, 1988
  • Internship, Department of Medicine, Oregon Health Sciences University, Portland, OR, 1988 - 1989
  • Residency, Department of Medicine, Oregon Health Sciences University, Portland, OR, 1989 - 1991
  • Chief Resident, Department of Medicine, Oregon Health Sciences University, Portland, OR, 1991 - 1992
  • Fellowship, Department of Medicine, Division of Gastroenterology, University of California, San Francisco, CA, 1992 - 1995
  • English
  • German
  • Spanish

Care Locations

The Oregon Clinic-Gastroenterology East at Gateway
1111 NE 99th Ave.
Suite 301
Portland , OR 97220
Fax 503-963-2802


Board Certifications
  • Gastroenterology
  • Internal medicine
Conditions Treated