Ronald Lew MD, FASGE

Ronald Lew MD, FASGE

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

“Whatever the situation, I feel that understanding the patient’s symptoms plays a key part when making a diagnosis. And when it comes time to perform any endoscopic procedure, I always make the patient’s comfort a top priority.”

Dr. Lew completed his undergraduate degree in molecular and cell biology at the University of California at Berkeley and received his medical degree from New York University School of Medicine. He completed an internal medicine residency at Harbor-UCLA Medical Center in Southern California. Dr. Lew completed his gastroenterology fellowship training at the University of Pennsylvania in Philadelphia and spent an additional year specializing in therapeutic pancreaticobiliary endoscopy and endoscopic ultrasound. He joined Gastroenterology Specialists of Oregon (now The Oregon Clinic Gastroenterology South) in 2002. 

Dr. Lew has special interest in gastrointestinal oncology, with particular focus on pancreatic, biliary, and esophageal cancer. He serves on the Tumor Board at both Legacy Meridian Park Hospital and Willamette Falls Hospital. Dr. Lew gained his designation as a Fellow in the American Society for Gastrointestinal Endoscopy (ASGE) in 2012. The designation of Fellow signifies an individual who has made significant contributions to the field of Endoscopy through scientific and/or educational contributions, and service in positions of leadership.

In his free time, Dr. Lew enjoys cycling, camping, alpine skiing, and spending time with his wife and two children.

Other Activities

Instructor of Medicine, University of Pennsylvania, PA, 2001 – 2002

Attending Physician, Ward Medicine VAMC, Philadelphia, PA, 2000 – 2002

Member, American Gastroenterological Association

Member, American Society for Gastrointestinal Endoscopy

Member, American College of Gastroenterology


Third Tier Fellowship, Therapeutic Endoscopy, University of Pennsylvania, Philadelphia, PA, 2002

Fellowship, Gastroenterology, University of Pennsylvania, Philadelphia, PA, 2001

Residency, Internal Medicine, Harbor, UCLA Medical Center, Torrance, CA, 1998

Internship, Internal Medicine, Harbor, UCLA Medical Center, Torrance, CA, 1996

MD, New York University, New York, NY, 1995

BA, Molecular Cell Biology, University of California, Berkeley, Berkeley, CA, 1991




Portland Monthly Magazine, “Top Doctors,” 2016, 2020