Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. John S. Yao, MDFACP

Individual provider Internal Medicine Physician · NPI 1275169302

Dr. John S. Yao, MDFACP is an Internal Medicine Physician in San Francisco, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2020
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Practice location Address checks out

229 Brannan St Unit 15C
San Francisco, CA 94107-4059
Phone: (415) 308-9278
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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 G54622 (CA)

Record details

NPI number1275169302
Entity typeIndividual (Type 1)
GenderMale
Credentials MDFACP
Sole proprietorYes
NPI enumeratedMarch 20, 2020
Last updated in NPPESMarch 20, 2020
Certification dateMarch 20, 2020

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