Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

California Institute of Health & Social Services

Community/Behavioral Health Agency in Lancaster, CA · enumerated 2013 · authorized official William Marshall, President.

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

National Provider Identifier

1144664459

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Registry record

Entity type Organization (Type 2)

Legal business name California Institute of Health & Social Services

Other name <Unavail>

Practice address 43845 10th St W, 2b, Lancaster, CA, 93534

Phone (310) 645-5227

Enumeration date Apr 18, 2013

Last updated in NPPES Apr 18, 2013

Taxonomy & classification

251S00000X Community/Behavioral Health Agency Agencies Primary

Authorized official

Name William Marshall

Title President

Phone (310) 645-5227

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

Who is the authorized official for California Institute of Health & Social Services?

NPPES lists William Marshall (President) as the authorized official for this organization.

What is the NPI number for California Institute of Health & Social Services?

The NPI for California Institute of Health & Social Services is 1144664459, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-04-18.