NPI Portal NPI Lookup & Verification

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

Aaron Stem, A.T.,C

Athletic Trainer in Aztec, NM · enumerated 2014.

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

National Provider Identifier

1295139558

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Registry record

Entity type Individual (Type 1)
Name Aaron Stem
Credential A.T.,C
Sex Male
Practice address Aztec, NM, 87410
Phone (505) 486-6412
Enumeration date Oct 15, 2014
Last updated in NPPES Oct 15, 2014

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 366 (NM) 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.

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Frequently asked questions

What is the NPI number for Aaron Stem?
The National Provider Identifier (NPI) for Aaron Stem is 1295139558, a Type 1 (individual) record in the CMS NPPES registry.
Where does Aaron Stem practice?
The practice location on file with NPPES is in Aztec, NM. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-10-15.