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

Diana Baldessari Jamison

Clinical Social Worker in Arcadia, CA · enumerated 2022.

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

National Provider Identifier

1194457978

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Registry record

Entity type Individual (Type 1)
Name Diana Baldessari Jamison
Sex Female
Practice address Arcadia, CA, 91006
Enumeration date Jun 29, 2022
Last updated in NPPES Feb 15, 2024

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 115819 (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

What is the NPI number for Diana Jamison?
The National Provider Identifier (NPI) for Diana Jamison is 1194457978, a Type 1 (individual) record in the CMS NPPES registry.
Where does Diana Jamison practice?
The practice location on file with NPPES is in Arcadia, 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 2024-02-15.