Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Roger E Castillo, PA-C

Individual provider Physician Assistant · NPI 1134235773

Roger E Castillo, PA-C is a Physician Assistant in Walnut Creek, California. Works from 3 locations. Licensed in California and Montana.

Licensed in
CA, MT
In the registry since
2006
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

1450 Treat Blvd # 160
Walnut Creek, CA 94597
Phone: (925) 296-9000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 3075 North Reserve Street, Suite Q, Missoula, MT 59808 — (406) 327-1850
  • 3075 North Reserve Street, Suite Q, Missoula, MT 59808 — (406) 327-1850

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence PA55863 (CA)
Physician Assistant Taxonomy 363A00000X · Licence 152 (MT)

Record details

NPI number1134235773
Entity typeIndividual (Type 1)
GenderMale
Credentials PA-C
Sole proprietorNo
NPI enumeratedAugust 23, 2006
Last updated in NPPESJuly 12, 2019
Mailing address1450 Treat Blvd # 300, Walnut Creek, CA 94597-2168

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