Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Anna Karen Contreras-Contreras

Social Worker in Los Gatos, CA · enumerated 2024.

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

National Provider Identifier

1699521492

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Registry record

Entity type Individual (Type 1)

Name Anna Karen Contreras-Contreras

Sex Female

Practice address 499 Loma Alta Ave, Los Gatos, CA, 95030

Phone (408) 379-3790

Enumeration date Apr 24, 2024

Last updated in NPPES May 28, 2026

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 138811 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Anna Contreras-Contreras?

The National Provider Identifier (NPI) for Anna Contreras-Contreras is 1699521492, a Type 1 (individual) record in the CMS NPPES registry.

Where does Anna Contreras-Contreras practice?

The practice location on file with NPPES is in Los Gatos, 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 2026-05-28.