Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Carla Maria Diaz, ACSW

Q: What is the NPI number for Carla Diaz?

The National Provider Identifier (NPI) for Carla Diaz is 1548090285, a Type 1 (individual) record in the CMS NPPES registry.

Social Worker in South Pasadena, CA · enumerated 2024.

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

National Provider Identifier

1548090285

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Registry record

Entity type Individual (Type 1)

Name Carla Maria Diaz

Credential ACSW

Sex Female

Practice address 625 Fair Oaks Ave Ste 300, South Pasadena, CA, 91030

Phone (626) 463-1021

Enumeration date Aug 6, 2024

Last updated in NPPES Oct 7, 2026

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License ASW137061 (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

Where does Carla Diaz practice?

The practice location on file with NPPES is in South Pasadena, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Carla Diaz?

The National Provider Identifier (NPI) for Carla Diaz is 1548090285, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-10-07.