Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gregory Alan Thompson, D.D.S.

General Practice Dentistry in Tsaile, AZ · enumerated 2006.

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

National Provider Identifier

1023176963

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Registry record

Entity type Individual (Type 1)

Name Dr. Gregory Alan Thompson

Credential D.D.S.

Sex Male

Practice address Navajo Route 12 & 64, Tsaile Health Center, Tsaile, AZ, 86556

Phone (928) 674-7166

Fax (928) 674-7705

Enumeration date Dec 4, 2006

Last updated in NPPES Mar 10, 2011

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License DEN 014325 (MO) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Gregory Thompson practice?

The practice location on file with NPPES is in Tsaile, AZ. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Gregory Thompson?

The National Provider Identifier (NPI) for Gregory Thompson is 1023176963, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-03-10.