Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Gary Diehm, ATC

Q: What is the NPI number for Gary Diehm?

The National Provider Identifier (NPI) for Gary Diehm is 1457742579, a Type 1 (individual) record in the CMS NPPES registry.

Athletic Trainer in Wichita Falls, TX · enumerated 2015 · practices at Midwestern State University-Vinson Health Center.

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

National Provider Identifier

1457742579

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Registry record

Entity type Individual (Type 1)

Name Gary Diehm

Credential ATC

Sex Male

Practice address Wichita Falls, TX, 76308

Phone (940) 397-6236

Fax (940) 397-6878

Enumeration date Feb 11, 2015

Last updated in NPPES Feb 11, 2015

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2255A2300X Athletic Trainer Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License AT2570 (TX) Primary

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 Gary Diehm practice?

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

What is the NPI number for Gary Diehm?

The National Provider Identifier (NPI) for Gary Diehm is 1457742579, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-02-11.