NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Aaron P Hostetler

Day Training/Habilitation Specialist in Los Angeles, CA · enumerated 2006.

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

National Provider Identifier

1134201858

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mr. Aaron P Hostetler
Sex Male
Practice address 510 S Vermont Ave Fl 18, Los Angeles, CA, 90020
Enumeration date Oct 20, 2006
Last updated in NPPES Oct 29, 2025

Taxonomy & licenses

373H00000X Day Training/Habilitation Specialist Nursing Service Related 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

What is the NPI number for Aaron Hostetler?
The National Provider Identifier (NPI) for Aaron Hostetler is 1134201858, a Type 1 (individual) record in the CMS NPPES registry.
Where does Aaron Hostetler practice?
The practice location on file with NPPES is in Los Angeles, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-10-29.