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

Dr. Andrew M. Posselt, MD

Individual provider Internal Medicine Physician · NPI 1235193616

Dr. Andrew M. Posselt, MD is a General Surgery in San Francisco, California. Graduated from Perelman School of Med at the University of Pennsylvania in 1993, 33 years ago. Practices with UCSF Medical Group Business Services, a 1,531-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
33
Trained at
Perelman School of Med at the University of Pennsylvania
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

400 Parnassus Ave
San Francisco, CA 94143-2202
Phone: (415) 353-2318
Fax: (415) 353-8917
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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 G81075 (CA)
Surgery Physician Taxonomy 208600000X · Licence G81075 (CA)

Record details

NPI number1235193616
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 13, 2006
Last updated in NPPESJuly 13, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGENERAL SURGERY
Also practisesINTERNAL MEDICINE
Medical schoolPERELMAN SCHOOL OF MED AT THE UNIVERSITY OF PENNSYLVANIA
Graduated 1993 (33 years in practice)
Group practice Ucsf Medical Group Business Services — 1531 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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