NPI Portal NPI Lookup & Verification

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

Mr. Paul Gonsier, M.S.W., L.C.S.W.

Clinical Social Worker in Riverside, CA · enumerated 2006.

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

National Provider Identifier

1336216654

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Registry record

Entity type Individual (Type 1)
Name Mr. Paul Gonsier
Credential M.S.W., L.C.S.W.
Sex Male
Practice address Riverside, CA, 92507
Phone (951) 683-1419
Fax (951) 780-5924
Enumeration date Nov 30, 2006
Last updated in NPPES Oct 4, 2021

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

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License LCS13048 (CA) Primary
LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW 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 Paul Gonsier?
The National Provider Identifier (NPI) for Paul Gonsier is 1336216654, a Type 1 (individual) record in the CMS NPPES registry.
Where does Paul Gonsier practice?
The practice location on file with NPPES is in Riverside, 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 2021-10-04.