Public provider listing
Eugene Y. Lee, MD
Eugene Y. Lee, MD is a Gastroenterologist practice in San Mateo, CA. Rated 4.8 from 22 public reviews. Phone and website are listed.

Address
100 S Ellsworth Ave #507, San Mateo, CA 94401
San Mateo, CA 94401
Phone
(650) 342-7432Website
Visit listed websiteListing updates
Request a correction or opt-outPublic hours
Listed hours
- Monday
- 9AM–5PM
- Tuesday
- 9AM–5PM
- Wednesday
- 9AM–5PM
- Thursday
- 9AM–5PM
- Friday
- 9AM–5PM
- Saturday
- Closed
- Sunday
- Closed
Verified listing details
Credentials, affiliations, and coverage
Credentials and licenses
- MD
- MEDICAL DOCTOR
- Professional license · CA
- Professional license · CA
- Professional license · CA
Affiliations
- BROWN AND TOLAND
- ONUMA AND LEE MD'S
- PENINSULA GASTROINTESTINAL
- SUTTER BAY HOSPITALS
Sources
- CMS National Provider Directory · checked Aug 31, 2026
- cms-doctors-clinicians · checked Aug 29, 2026
- google-maps-octoparse-account-reuse · checked Aug 29, 2026
Federal data is attributed to its source and does not imply CMS endorsement.
Public media
Newest photos

Public reviews
Newest reviews
Review details are not available here. The listing reports 22 public reviews.





