1. Home
  2. Directory
  3. Montana
  4. Missoula
  5. Clinical Neuropsychologist
  6. NPI Profile

JOHN ROBERT HARRISON PHD
NPI 1295750636
Clinical Neuropsychologist in Missoula, MT

Active since July 13, 2006PECOS EnrolledAccepts Medicare Assignment
601 W SPRUCE ST STE K, MISSOULA, MT 59802(406) 327-3330(406) 327-2399 Get Directions Write a Review

NPPES record last updated: April 20, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 11, 2019, Dec 29, 2017 (2 updates tracked since 2017).

About John Robert Harrison Phd NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOHN ROBERT HARRISON PHD (NPI 1295750636) is an individual clinical neuropsychologist in Missoula, Montana, licensed in Montana (PSY-PSY-LIC-226) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Missoula, and is a graduate of Other (1989).

NPPES Registry Identity

NPI1295750636
Entity TypeIndividualMale
Primary Taxonomy103G00000X
Provider Legal NameJOHN ROBERT HARRISONCredential: PHD
Location Address601 W SPRUCE ST STE KMissoula, MT 59802-4047
Mailing AddressPo Box 31001-4110Pasadena, CA 91110-4110 · (406) 327-3330 · Fax (406) 327-2399
Phone(406) 327-3330
Fax(406) 327-2399
Sole ProprietorNo
Medical School CMSOtherGraduated 1989
Enumeration DateJuly 13, 2006
Last NPPES UpdateApril 20, 20252 updates tracked since enumeration
NPPES CertifiedApril 20, 2025
✔ NPI 1295750636 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyClinical NeuropsychologistBehavioral Health & Social Service Providers
Taxonomy Code103G00000X
License✔ Licensed in MT · PSY-PSY-LIC-226
Definition
A clinical psychologist who applies principles of assessment and intervention based upon the scientific study of human behavior as it relates to normal and abnormal functioning of the central nervous system. The specialty is dedicated to enhancing the understanding of brain-behavior relationships and the application of such knowledge to human problems.
Also ListedPsychologistTaxonomy 103T00000X · License PSY-PSY-LIC-226 (MT)
Also ListedPsychologist · SchoolTaxonomy 103TS0200X · License 59040 (MT)
601 W SPRUCE ST STE K, Missoula, MT 59802
Open in Google Maps ↗

Secondary Practice Location 1

Location 12825 FORT MISSOULA RD, STE 301MISSOULA, MT 59804-7403 · Phone (406) 327-4688 · Fax (406) 327-4291

Other Identifiers 2

Medicaid0492524MT
Other000052321MT · Bcbs Provider Number

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

John Robert Harrison Phd is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6305815812
PECOS Enrollment IDI20041004001168
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show John Harrison reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Providence Health & Services Mt
Same address
Physical Medicine & Rehabilitation
601 W SPRUCE ST, STE C
Missoula, MT 59802
  • Reassigned Medicare billing, Montana enrollment
  • 325 clinicians in this Medicare group
NPI 1306086160 (406) 327-1827

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 7

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

REBECCA CASEY BURKE M.D.
Internal Medicine (Hospice and Palliative Medicine)
601 W SPRUCE ST STE K
MISSOULA, MT 59802
Missoula County (406) 327-1950
BECCA NICOLE SNYDER ARNP
Nurse Practitioner (Adult Health)
601 W SPRUCE ST STE K
MISSOULA, MT 59802
Missoula County (406) 327-1950
DR. CHRISTOPHER JONS MD
Pediatrics (Hospice and Palliative Medicine)
601 W SPRUCE ST STE K
MISSOULA, MT 59802
Missoula County (406) 543-7271
FIONA CAROLINE SAMPEY PA-C, MMSC
Physician Assistant
601 W SPRUCE ST STE K
MISSOULA, MT 59802
Missoula County (406) 327-1950
KRISTIN DAWN HARKO NP
Nurse Practitioner (Gerontology)
601 W SPRUCE ST STE K
MISSOULA, MT 59802
Missoula County (406) 327-1950
MS. KELSEY GRACE SULLIVAN PA-C
Physician Assistant (Medical)
601 W SPRUCE ST STE K
MISSOULA, MT 59802
Missoula County (406) 327-1950
HANNAH ELIZABETH WADSWORTH PHD
Clinical Neuropsychologist
601 W SPRUCE ST STE K
MISSOULA, MT 59802
Missoula County (406) 327-3330

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Harrison's NPI number?

The NPI number for John Harrison is 1295750636. It was assigned to this individual provider in the NPPES registry on July 13, 2006.

Where is John Harrison located?

John Harrison practices at 601 W Spruce St Ste K, Missoula, MT 59802. The listed phone number is (406) 327-3330.

What is John Harrison's specialty?

The primary specialty registered for this NPI is Clinical Neuropsychologist with taxonomy code 103G00000X.

Is John Harrison enrolled in Medicare?

Yes. John Harrison is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for John Harrison's services?

According to the CMS Revalidation Reassignment List (October 2026 release), John Harrison reassigns Medicare benefits to Providence Health & Services Mt (Missoula, MT). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for John Harrison's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for John Harrison was last updated on April 20, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.