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

Dr. James W. Ostroff, MD

Individual provider Internal Medicine Physician · NPI 1477505881

Dr. James W. Ostroff, MD is an Internal Medicine 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

350 Parnassus Ave Ste 410
San Francisco, CA 94117-3608
Phone: (415) 502-2112
Fax: (415) 514-3400
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence G41522 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence G41522 (CA)

Record details

NPI number1477505881
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 16, 2006
Last updated in NPPESOctober 25, 2009

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