Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alejandra Diaz

Physician Assistant in Modesto, CA · enumerated 2018.

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

National Provider Identifier

1922578657

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Registry record

Entity type Individual (Type 1)

Name Alejandra Diaz

Sex Female

Practice address 4601 Dale Rd, Modesto, CA, 95356

Phone (209) 735-0000

Enumeration date Nov 26, 2018

Last updated in NPPES May 12, 2025

Taxonomy & licenses

227900000X Registered Respiratory Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 35585 (CA) Secondary

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing 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.

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Frequently asked questions

Where does Alejandra Diaz practice?

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

What is the NPI number for Alejandra Diaz?

The National Provider Identifier (NPI) for Alejandra Diaz is 1922578657, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Daniel Lundgren Optometrist · Modesto, CA NPI 1811986375 Stephen Willey Physical Therapist · Modesto, CA NPI 1912998311 Dat Nguyen Specialist · Modesto, CA NPI 1659346435 Angela Abe Optometrist · Modesto, CA NPI 1336108885 Liansong Chen Specialist · Modesto, CA NPI 1265492292 Richard Garcia Emergency Medicine Physician · Modesto, CA NPI 1437110566 Laurel Goldstein Emergency Medicine Physician · Modesto, CA NPI 1992748446 Ajay Sood Diagnostic Radiology Physician · Modesto, CA NPI 1639113681

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-05-12.