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

Matthew O'Brien, PA-C

Individual provider Physician Assistant · NPI 1518725779

Matthew O'Brien, PA-C is a Physician Assistant in Palo Alto, California. Practices as a sole proprietor and works from 2 locations. Licensed in California.

Licensed in
CA
In the registry since
2024
Specialties on file
2
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

725 Welch Rd
Palo Alto, CA 94304-1601
Phone: (650) 497-8000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 612 Exeter Pl, Danville, CA 94506-1264 — (925) 413-3104

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence 64390 (CA)
Physician Assistant Taxonomy 363A00000X

Record details

NPI number1518725779
Entity typeIndividual (Type 1)
GenderMale
Credentials PA-C
Sole proprietorYes
NPI enumeratedMarch 11, 2024
Last updated in NPPESJune 26, 2024
Certification dateJune 26, 2024

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