NPPES file of Aug 9, 2026

John Halvorson, PHD

Clinical Psychologist · Grand Junction, CO

John Halvorson, PHD is a clinical psychologist with a practice address in Grand Junction, Colorado, and NPI 1780660670, issued on Dec 21, 2005. Check the license (Colorado 511, as entered in NPPES) with the Colorado board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1780660670
Name
John Halvorson
Credential
PHD
Primary taxonomy
Clinical Psychologist 103TC0700X
License number
511 CO
Self-reported in NPPES; status is on the state search
Practice location
1160 Patterson RD, Grand Junction, CO 81506
Phone
(970) 244-2800
Enumerated
Dec 21, 2005
Record last updated
Nov 20, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(970) 255-6291
Medicaid ID
07005119 CO
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest clinical psychologist records → All 1,652 in Colorado → Look up another NPI →

Also registered at 1160 Patterson RD

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

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  2. Nicholas Blanchard, D.O.Family Medicine Physician1710134036
  3. David CarlsonFamily Medicine Physician1205064433
  4. Keith Dickerson, M.D.Family Medicine Physician1043296924
  5. Caroline Dorman, M.D.Family Medicine Physician1639108343
  6. Richard Janson, MDPlastic Surgery Physician1922009372

Verify John Halvorson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Colorado board licenses this profession
    Search for license 511    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 Colorado license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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John Halvorson among 1,652 clinical psychologist records in Colorado

John Halvorson, PHD is one of 1,652 clinical psychologist records with a practice address in Colorado. 14% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 98% newer
  • In a Medicare fileNo · 14% of these records are
  • In the CMS Doctors and Clinicians fileNo · 22% of these records are
  • Record last updated2007 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Clinical Psychologist providers in Colorado

There are 1,652 clinical psychologist records in Colorado. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 1,652 in Colorado → Every provider in Grand Junction → Clinical Psychologist nationwide →

The 8 clinical psychologist records with the nearest ZIP codes

  1. Maridel Andres, PHDGrand Junction, CO 815061568470243
  2. Tara Carone, PSYDGrand Junction, CO 815061447797295
  3. Melissa Carris, PH.D.Grand Junction, CO 815061245318484
  4. Kelly Duncombe, PSYDGrand Junction, CO 815061669503470
  5. Erik Marsh, PSY.D.Grand Junction, CO 815061851674667
  6. Kent Snowbarger, ED.DGrand Junction, CO 815061033263850
  7. Thomas Weir, PSY.D.Grand Junction, CO 815061972846772
  8. Isa Wright, PHDGrand Junction, CO 815061316716533

Common questions

What is John Halvorson, PHD's NPI number?

John Halvorson, PHD's National Provider Identifier (NPI) is 1780660670, issued on Dec 21, 2005. An NPI identifies a provider in billing; it is not a license.

Where is John Halvorson, PHD located?

The NPPES record lists a practice address at 1160 Patterson RD, Grand Junction, CO, 81506. Phone: (970) 244-2800. Providers update this record themselves, so call before visiting.

How can I verify John Halvorson, PHD's license?

NPPES lists Colorado license number 511, as entered by the provider. Search the Colorado 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. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.