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

Mary Petrofsky, NP

Individual provider Nurse Practitioner · NPI 1013220359

Mary Petrofsky, NP is a Nurse Practitioner in San Francisco, California. Qualified in 2008, 18 years ago. Practices with UCSF Medical Group Business Services, a 1,531-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
18
Licensed in
CA
In the registry since
2010
Specialties on file
2
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

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Practice location Address checks out

505 Parnassus Ave Rm M1286
San Francisco, CA 94143-2204
Phone: (415) 527-8322
Fax: (415) 476-0624
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 300 Pasteur Drive, Stanford, CA 94305-5221 — (650) 736-2536

Specialties & licences

Acute Care Nurse Practitioner (primary) Taxonomy 363LA2100X · Licence NP 18337 (CA)
Nurse Practitioner Taxonomy 363L00000X · Licence NP 18337 (CA)

Record details

NPI number1013220359
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorNo
NPI enumeratedJuly 15, 2010
Last updated in NPPESAugust 6, 2023
Certification dateAugust 6, 2023

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2008 (18 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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