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

Individual provider Internal Medicine Physician · NPI 1699800219

William Stanley Andereck, MD is an Internal Medicine Physician in San Francisco, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2007
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

2100 Webster St Ste 418
San Francisco, CA 94115-2373
Phone: (415) 923-3025
Fax: (415) 749-5720
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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 G33409 (CA)

Record details

NPI number1699800219
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedFebruary 22, 2007
Last updated in NPPESJuly 9, 2007

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