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

Joseph Michael Mashinchi, PA

Individual provider Physician Assistant · NPI 1184004913

Joseph Michael Mashinchi, PA is a Physician Assistant in Oakland, California. Qualified in 2015, 11 years ago. Practices with Northbay Physicians Surgery Center, LLC, a 337-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
11
Licensed in
CA
In the registry since
2015
Specialties on file
2
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

747 52nd St
Oakland, CA 94609-1809
Phone: (510) 428-3238
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1441 Florida Ave, Modesto, CA 95350-4404 — (209) 578-1211

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence 52558 (CA)
Surgical Physician Assistant Taxonomy 363AS0400X · Licence PA52558 (CA)

Record details

NPI number1184004913
Entity typeIndividual (Type 1)
GenderMale
Credentials PA
Sole proprietorNo
NPI enumeratedJune 6, 2015
Last updated in NPPESSeptember 18, 2025
Certification dateSeptember 18, 2025

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2015 (11 years in practice)
Group practice Northbay Physicians Surgery Center, Llc — 337 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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