Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Pei-Fen Lin, MD

Individual provider Internal Medicine Physician · NPI 1740429885

Pei-Fen Lin, MD is an Undefined Physician Type (Specify) in Castro Valley, California. Graduated from Indiana University School of Medicine in 2008, 18 years ago. Practices with Sutter Bay Medical Foundation, a 3,762-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
18
Trained at
Indiana University School of Medicine
Licensed in
CA
In the registry since
2009
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

20103 Lake Chabot Rd
Castro Valley, CA 94546-5305
Phone: (510) 727-3256
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence A110396 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence A110396 (CA)

Record details

NPI number1740429885
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 12, 2009
Last updated in NPPESMay 9, 2017
Mailing address3687 Mt Diablo Blvd, Suite 200, Lafayette, CA 94549-3717

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyUNDEFINED PHYSICIAN TYPE (SPECIFY)
Also practisesINTERNAL MEDICINE
Medical schoolINDIANA UNIVERSITY SCHOOL OF MEDICINE
Graduated 2008 (18 years in practice)
Group practice Sutter Bay Medical Foundation — 3762 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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