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

Individual provider Internal Medicine Physician · NPI 1477575744

Dr. Allan Sykes Treadwell, 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
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

350 Parnassus Ave Ste 710
San Francisco, CA 94117-3608
Phone: (415) 476-2752
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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 G74876 (CA)

Record details

NPI number1477575744
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 24, 2006
Last updated in NPPESJuly 8, 2007

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