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

Jack Mixner, MS, ATC

Q: What is the NPI number for Jack Mixner?

The National Provider Identifier (NPI) for Jack Mixner is 1821665894, a Type 1 (individual) record in the CMS NPPES registry.

Athletic Trainer in Apopka, FL · enumerated 2021.

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

National Provider Identifier

1821665894

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Registry record

Entity type Individual (Type 1)

Name Jack Mixner

Credential MS, ATC

Sex Male

Practice address Apopka, FL, 32703

Phone (407) 880-7772

Enumeration date Jun 8, 2021

Last updated in NPPES Jun 8, 2021

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 5095 (FL) 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

What is the NPI number for Jack Mixner?

The National Provider Identifier (NPI) for Jack Mixner is 1821665894, a Type 1 (individual) record in the CMS NPPES registry.

Where does Jack Mixner practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-06-08.