Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Joseph T Olsen

Clinical Social Worker in Rocklin, CA · enumerated 2024.

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

National Provider Identifier

1134976616

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Registry record

Entity type Individual (Type 1)

Name Joseph T Olsen

Sex Male

Practice address 655 Menlo Dr, Rocklin, CA, 95765

Phone (916) 740-1620

Enumeration date May 2, 2024

Last updated in NPPES May 2, 2024

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 87183 (CA) 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.

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Frequently asked questions

How do I verify Joseph Olsen's NPI record?

Cross-check NPI 1134976616 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1134976616 active?

Yes, as of the latest NPPES snapshot, NPI 1134976616 is active (record last updated 2024-05-02).

Other providers at this practice address

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Melody Fuller School Social Worker · Rocklin, CA NPI 1710701925

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-05-02.