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

Justin Hostert

Athletic Trainer in Fullerton, CA · enumerated 2017.

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

National Provider Identifier

1588185789

Verified

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Registry record

Entity type Individual (Type 1)

Name Justin Hostert

Sex Male

Practice address Fullerton, CA, 92831

Phone (714) 686-7126

Enumeration date Jun 28, 2017

Last updated in NPPES Jun 28, 2017

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 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 Justin Hostert practice?

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

What is the NPI number for Justin Hostert?

The National Provider Identifier (NPI) for Justin Hostert is 1588185789, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-06-28.