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

Dr. C. Spencer Yost, MD

Individual provider Critical Care Medicine (Anesthesiology) Physician · NPI 1356309140

Dr. C. Spencer Yost, MD is a Critical Care Medicine (Anesthesiology) Physician in San Francisco, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
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

513 Parnassus Ave
San Francisco, CA 94143-2205
Phone: (415) 476-9035
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence G53750 (CA)
Critical Care Medicine (Anesthesiology) Physician Taxonomy 207LC0200X · Licence G53750 (CA)

Record details

NPI number1356309140
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 2, 2006
Last updated in NPPESJuly 13, 2026

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