

Gastroenterology
Shannon Lewis, MD
Portland, OR
Dr. Lewis received a Bachelor's of Arts in biology from Pomona College, Claremont, CA, and continued on to Loyola University Stritch School of Medicine in Maywood, IL, where she earned a medical degree, magna cum laude. She completed an internship and residency in internal medicine and a fellowship in gastroenterology at UCLA Medical Center, Los Angeles, CA. During her medical training she was a member of the Alpha Omega Alpha National Honorary Society and the recipient of the Gunnar Memorial Sc
22+
Years in Practice
Credentials
Education & Training
- fellowship in gastroenterology at UCLA Medical Center
- residency in internal medicine and a fellowship in gastroenterology at UCLA Medical Center
Peer Recognition
- Castle Connolly — Top Doctor
2022-2026 (5 years)
Clinical Focus
Subspecialties
Colorectal Cancer Screening
Conditions & Treatments
Colorectal CancerColonoscopyColon Cancer Screening
Practice Details
Hospital Affiliations
- Providence Milwaukie Hospital
Experience
22+ years in practice