Quick answers
- Which hospitals does Pei-Fen Lin work at?
- Medicare's official clinician data lists Pei-Fen Lin at 3 hospitals: Alta Bates Summit Medical Center, Eden Medical Center and Stanford Health Care Tri-Valley. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Pei-Fen Lin see patients?
- Medicare's clinician data lists 1 practice location in Castro Valley, CA. Call before your visit to confirm the address.
- What is Pei-Fen Lin's specialty?
- Medicare lists Undefined Physician Type (Specify) as the primary specialty, and also Internal Medicine.
- Does Pei-Fen Lin accept Medicare assignment?
- Yes. Medicare's clinician data says Pei-Fen 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 Pei-Fen Lin?
- (510) 727-3256, as listed in official Medicare / NPI Registry data.
- What is Pei-Fen Lin's NPI number?
- 1740429885. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Pei-Fen Lin works
Medicare's Facility Affiliation Data lists Pei-Fen Lin at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Alta Bates Summit Medical CenterOakland, CA · Acute Care Hospital · CCN 050043
- Eden Medical CenterCastro Valley, CA · Acute Care Hospital · CCN 050488
- Stanford Health Care Tri-ValleyPleasanton, CA · Acute Care Hospital · CCN 050283
Practice locations
Addresses where Pei-Fen Lin is enrolled with Medicare (CMS data updated 2026-10-02).
- 20103 Lake Chabot RdCastro Valley, CA 94546 (510) 727‑3256
Group practices
Medicare enrollment lists Pei-Fen Lin as a member of this group (CMS data updated 2026-10-02).
- Sutter Bay Medical Foundation3,829 clinicians in the group
Specialties
Find other Undefined Physician Type (Specify) doctors in California →
Other physicians in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Indiana University School Of Medicine |
| Graduation year | 2008 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1740429885 |
| 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