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

Individual provider Internal Medicine Physician · NPI 1437225059

Mark Oscherwitz, 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
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

1199 Bush St Ste #400
San Francisco, CA 94109
Phone: (415) 673-7600
Fax: (415) 673-8065
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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 C020057 (CA)

Record details

NPI number1437225059
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 27, 2006
Last updated in NPPESDecember 17, 2007

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