NPPES file of Aug 9, 2026

John Gary Grow, PH.D.

Clinical Psychologist · Havre, MT

John Gary Grow, PH.D. is a clinical psychologist with a practice address in Havre, Montana, and NPI 1992968366, issued on Jul 7, 2008. Check the license (Montana 397, as entered in NPPES) with the Montana board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1992968366
Name
John Gary Grow
Credential
PH.D.
Primary taxonomy
Clinical Psychologist 103TC0700X
License number
397 MT
Self-reported in NPPES; status is on the state search
Practice location
20 13TH St W, Havre, MT 59501
Phone
(406) 265-7831
Enumerated
Jul 7, 2008
Record last updated
Oct 9, 2025
Medicare enrollment
Enrolled (PECOS I20080807000384); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 20 13TH St W

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Cameron Acor, DPMFoot & Ankle Surgery Podiatrist1467644609
  2. Thomas Booth, D.O.Family Medicine Physician1437121993
  3. Michelle Cameron-Donaldson, MDOrthopaedic Surgery Physician1952418451
  4. Steven Cole, D.O.Internal Medicine Physician1184644726
  5. Gary Daniels, PMHNPPsychiatric/Mental Health Nurse Practitioner1942333091
  6. Julie Dellerba, APRNFamily Nurse Practitioner1538530027

Verify John Gary Grow in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Montana board licenses this profession
    Search for license 397
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Montana license search

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One hospital affiliation

  1. Northern Montana HospitalHavre, MT · Critical Access Hospitals

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).

5 clinical psychologist records list a practice address in Havre

They are 5 of the 196 NPPES records with a practice address in Havre, and 171 clinical psychologist records in Montana.

Other clinical psychologist records in Montana

  1. Robert Ammons, PH DMissoula, MT1134296445
  2. John Andre, PHDBillings, MT1114036126
  3. Herman AndroesKalispell, MT1467506725
  4. Nicholas AnthonyBozeman, MT1629137880
  5. Mika Awanohara, PSY.D.Bozeman, MT1679870505
  6. Paul Bach, PHDMissoula, MT1649227059
  7. Victoria Baird-ClementMalmstrom Afb, MT1306552039
  8. Robert Bateen, PHDHelena, MT1114117595
  9. Alan Bauer, ED.D.Billings, MT1144377268
  10. Cory Benjamin-Davis, PSY.D.Missoula, MT1215093620

Common questions

What is John Gary Grow, PH.D.'s NPI number?

John Gary Grow, PH.D.'s National Provider Identifier (NPI) is 1992968366, issued on Jul 7, 2008. An NPI identifies a provider in billing; it is not a license.

Where is John Gary Grow, PH.D. located?

The NPPES record lists a practice address at 20 13TH St W, Havre, MT, 59501. Phone: (406) 265-7831. Providers update this record themselves, so call before visiting.

How can I verify John Gary Grow, PH.D.'s license?

NPPES lists Montana license number 397, as entered by the provider. Search the Montana board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.