Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John Halvorson, PHD

Clinical Psychologist in Grand Junction, CO · enumerated 2005.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1780660670

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Registry record

Entity type Individual (Type 1)

Name John Halvorson

Credential PHD

Sex Male

Practice address 1160 Patterson Rd, Grand Junction, CO, 81506

Phone (970) 244-2800

Fax (970) 255-6291

Enumeration date Dec 21, 2005

Last updated in NPPES Nov 20, 2007

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 511 (CO) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier	Type	State	Issuer
07005119	Medicaid	CO	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

How do I verify John Halvorson's NPI record?

Cross-check NPI 1780660670 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1780660670 active?

Yes, as of the latest NPPES snapshot, NPI 1780660670 is active (record last updated 2007-11-20).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-11-20.