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

William Robert Walker, PA-C

Individual provider Medical Physician Assistant · NPI 1013227321

William Robert Walker, PA-C is a Medical Physician Assistant in Crow Agency, Montana. Works from 2 locations. Licensed in Maine and Montana.

Licensed in
ME, MT
In the registry since
2010
Specialties on file
2
What do these letters mean?
PA-C — Physician Assistant, Certified
A physician assistant who holds current national certification.

See every abbreviation used in this directory →

Practice location Address checks out

10110 S 7650 East Rd
Crow Agency, MT 59022-0009
Phone: (406) 638-2626
Fax: (406) 638-3572
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 10 Wayman Ln, Bar Harbor, ME 04609-1625 — (207) 288-5081

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence 638 (MT)
Medical Physician Assistant Taxonomy 363AM0700X · Licence PA1676 (ME)

Record details

NPI number1013227321
Entity typeIndividual (Type 1)
GenderMale
Credentials PA-C
Sole proprietorNo
NPI enumeratedOctober 20, 2010
Last updated in NPPESJuly 21, 2022

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 patients105
Services billed 112 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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.