Quick answers
- Where does Ruby G. Lin see patients?
- Medicare's clinician data lists 2 practice locations, including Pleasanton, CA. Call before your visit to confirm the address.
- What is Ruby G. Lin's specialty?
- Medicare lists Obstetrics/Gynecology as the primary specialty.
- Does Ruby G. Lin accept Medicare assignment?
- Medicare's clinician data says Ruby G. Lin may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is Ruby G. Lin's NPI number?
- 1275038689. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Ruby G. Lin is enrolled with Medicare (CMS data updated 2026-10-02).
- 5820 Owens Dr, Bldg E2ndPleasanton, CA 94588
- 5820 Owens Dr Bldg E 2nd FloorPleasanton, CA 94588
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Pleasanton
Clinicians with the same Medicare primary specialty in Pleasanton, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, San Francisco School Of Medicine |
| Graduation year | 2018 |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1275038689 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians