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

Sonia Diaz

Q: What is the NPI number for Sonia Diaz?

The National Provider Identifier (NPI) for Sonia Diaz is 1669762498, a Type 1 (individual) record in the CMS NPPES registry.

Rehabilitation Practitioner in Santa Clarita, CA · enumerated 2011.

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

National Provider Identifier

1669762498

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Registry record

Entity type Individual (Type 1)

Name Sonia Diaz

Sex Female

Practice address Santa Clarita, CA, 91350

Phone (661) 259-9439

Fax (661) 254-2033

Enumeration date Apr 13, 2011

Last updated in NPPES Apr 13, 2011

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

225400000X Rehabilitation Practitioner Respiratory, Developmental, Rehabilitative and Restorative Service Providers 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 Sonia Diaz?

The National Provider Identifier (NPI) for Sonia Diaz is 1669762498, a Type 1 (individual) record in the CMS NPPES registry.

Where does Sonia Diaz practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-04-13.