Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Ian Y.h. Lin, MD

Individual provider Internal Medicine Physician · NPI 1245306836

Dr. Ian Y.h. Lin, MD is an Internal Medicine in San Mateo, California. Graduated from Tufts University School of Medicine in 1994, 32 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in California.

Years since qualifying
32
Trained at
Tufts University School of Medicine
Licensed in
CA
In the registry since
2006
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

417 N San Mateo Dr
San Mateo, CA 94401-2417
Phone: (650) 524-1925
Fax: (650) 215-9919
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A054669 (CA)

Record details

NPI number1245306836
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedNovember 27, 2006
Last updated in NPPESJuly 8, 2007

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolTUFTS UNIVERSITY SCHOOL OF MEDICINE
Graduated 1994 (32 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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