NPI Portal NPI Lookup & Verification

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

Roberto Arturo Mendoza, P.A.

Physician Assistant in Downey, CA · enumerated 2006.

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

National Provider Identifier

1669403150

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Registry record

Entity type Individual (Type 1)
Name Roberto Arturo Mendoza
Credential P.A.
Sex Male
Practice address Downey, CA, 90242
Phone (562) 657-2652
Fax (562) 657-2846
Enumeration date Jul 5, 2006
Last updated in NPPES Nov 18, 2021

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

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA15542 (CA) Primary
PA · Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program. About the PA credential

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

What is the NPI number for Roberto Mendoza?
The National Provider Identifier (NPI) for Roberto Mendoza is 1669403150, a Type 1 (individual) record in the CMS NPPES registry.
Where does Roberto Mendoza practice?
The practice location on file with NPPES is in Downey, CA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-18.