NPI Portal NPI Lookup & Verification

Rex Joshua Hahn

Rex Joshua Hahn is a Acupuncturist provider (Acupuncturist) practicing in Stanton, CA, registered in the NPPES registry with NPI 1740110410 since 2026.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1740110410
Entity type Individual (Type 1)
Name Rex Joshua Hahn
Sex Male
Practice address Stanton, CA, 90680
Phone 7147458686
Enumeration date 2026-05-22
Last updated in NPPES 2026-05-22

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

Taxonomy & licenses

Taxonomy code Specialty Primary License State
171100000X Acupuncturist Primary AC20643 CA
Copy-ready billing details
Provider: Rex Hahn
NPI: 1740110410
Taxonomy: 171100000X (Acupuncturist)
Address: Stanton, CA, 90680

Verify this record

Cross-check NPI 1740110410 against the authoritative CMS record: view Rex Joshua Hahn on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

What specialty is Rex Hahn?
Rex Hahn is registered in NPPES with the primary taxonomy of Acupuncturist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2026-05-22.