NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Guadalupe Diaz

Case Manager/Care Coordinator in Fullerton, CA · enumerated 2019.

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

National Provider Identifier

1366094948

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Guadalupe Diaz
Sex Female
Practice address 801 E Chapman Ave Ste 203, Fullerton, CA, 92831
Phone (714) 680-9000
Enumeration date Jul 12, 2019
Last updated in NPPES May 5, 2025

Taxonomy & licenses

225400000X Rehabilitation Practitioner Respiratory, Developmental, Rehabilitative and Restorative Service Providers Secondary
171M00000X Case Manager/Care Coordinator Other 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 Guadalupe Diaz?
The National Provider Identifier (NPI) for Guadalupe Diaz is 1366094948, a Type 1 (individual) record in the CMS NPPES registry.
Where does Guadalupe Diaz practice?
The practice location on file with NPPES is in Fullerton, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

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