NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Catherine Chang Letherer, PA-C

Physician Assistant in Pomona, CA · enumerated 2006 · practices at Congregational Homes.

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

National Provider Identifier

1265476485

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Registry record

Entity type Individual (Type 1)
Name Ms. Catherine Chang Letherer
Credential PA-C
Sex Female
Practice address 900 E Harrison Ave, Pomona, CA, 91767
Phone (909) 624-5061
Enumeration date Jun 16, 2006
Last updated in NPPES Nov 19, 2024

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA14083 (CA) Primary

Other identifiers

Identifier Type State Issuer
PA14083 Other CA CALIFORNIA PAB LICENSE

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

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.
What specialty is Catherine Letherer?
Catherine Letherer is registered in NPPES with the primary taxonomy of Physician Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-11-19.