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

Patti Allen, MD

Individual provider Internal Medicine Physician · NPI 1659438489

Patti Allen, MD is an Internal Medicine Physician in Sunnyvale, California. Licensed in California. Registered with an NPI since 2007.

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

401 Old San Francisco Rd
Sunnyvale, CA 94086-6387
Phone: (408) 730-4360
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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 C52863 (CA)

Record details

NPI number1659438489
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 2, 2007
Last updated in NPPESNovember 29, 2011
Mailing address2350 W El Camino Real, 2nd Floor, Mountain View, CA 94040-6201

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