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

Marc K Massey, PA-C

Individual provider Physician Assistant · NPI 1649680364

Marc K Massey, PA-C is a Physician Assistant in San Bruno, California. Licensed in California. Registered with an NPI since 2014.

Licensed in
CA
In the registry since
2014
What do these letters mean?
PA-C — Physician Assistant, Certified
A physician assistant who holds current national certification.

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Practice location Address checks out

1310 El Camino Real Ste J
San Bruno, CA 94066-1305
Phone: (650) 270-2395
Fax: (650) 270-2397
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence 57099 (CA)

Record details

NPI number1649680364
Entity typeIndividual (Type 1)
GenderMale
Credentials PA-C
Sole proprietorNo
NPI enumeratedMay 2, 2014
Last updated in NPPESSeptember 8, 2023
Certification dateSeptember 8, 2023

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients217
Services billed 442 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

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