Quick answers
- Which hospitals does Ethan W. Lin work at?
- Medicare's official clinician data lists Ethan W. Lin at 4 hospitals: Marinhealth Medical Center, Novato Community Hospital, Sonoma Valley Hospital and UCSF Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ethan W. Lin see patients?
- Medicare's clinician data lists 1 practice location in Greenbrae, CA. Call before your visit to confirm the address.
- What is Ethan W. Lin's specialty?
- Medicare lists Family Practice as the primary specialty, and also Hospitalist.
- Does Ethan W. Lin accept Medicare assignment?
- Yes. Medicare's clinician data says Ethan W. Lin accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Ethan W. Lin?
- (415) 925-7000, as listed in official Medicare / NPI Registry data.
- What is Ethan W. Lin's NPI number?
- 1255871711. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ethan W. Lin works
Medicare's Facility Affiliation Data lists Ethan W. Lin at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Marinhealth Medical CenterGreenbrae, CA · Acute Care Hospital · CCN 050360
- Novato Community HospitalNovato, CA · Acute Care Hospital · CCN 050131
- Sonoma Valley HospitalSonoma, CA · Acute Care Hospital · CCN 050090
- UCSF Medical CenterSan Francisco, CA · Acute Care Hospital · CCN 050454
Practice locations
Addresses where Ethan W. Lin is enrolled with Medicare (CMS data updated 2026-10-02).
- 250 Bon Air RdGreenbrae, CA 94904 (415) 925‑7000
Group practices
Medicare enrollment lists Ethan W. Lin as a member of this group (CMS data updated 2026-10-02).
- Galen Inpatient Physicians PC1,077 clinicians in the group
Specialties
- Family Practiceprimary
- Hospitalistalso
Other family doctors in Greenbrae
Clinicians with the same Medicare primary specialty in Greenbrae, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2016 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1255871711 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- 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