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

Kelliann Marie Masterson, PA

Individual provider Physician Assistant · NPI 1275046740

Kelliann Marie Masterson, PA is a Physician Assistant in San Francisco, California. Qualified in 2017, 9 years ago. Practices with One Medical Group Inc, a 328-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
9
Licensed in
CA
In the registry since
2017
What do these letters mean?
PA — Physician Assistant
A licensed clinician who examines, diagnoses and treats under a physician's supervision.

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Practice location Address checks out

2175 Market St
San Francisco, CA 94114-1474
Phone: (888) 663-6331
Fax: (415) 252-7176
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 3850 Grand Ave, Oakland, CA 94610-1004 — (888) 663-6331
  • 1250 Heartwood Dr, Rohnert Park, CA 94928-1895 — (925) 348-6197
  • 559 Clay St Ste 200, San Francisco, CA 94111-3029 — (888) 663-6331

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence 55354 (CA)

Record details

NPI number1275046740
Entity typeIndividual (Type 1)
GenderFemale
Credentials PA
Sole proprietorNo
NPI enumeratedNovember 7, 2017
Last updated in NPPESMarch 17, 2025
Certification dateMarch 17, 2025

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice One Medical Group Inc — 328 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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