NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Denise Diaz

Case Manager/Care Coordinator in Chula Vista, CA · enumerated 2014.

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

National Provider Identifier

1639575558

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Denise Diaz
Sex Female
Practice address 430 F Street, Chula Vista, CA, 91910
Phone (619) 207-9846
Fax (619) 420-8722
Enumeration date Nov 5, 2014
Last updated in NPPES Dec 30, 2016

Taxonomy & licenses

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 Denise Diaz?
The National Provider Identifier (NPI) for Denise Diaz is 1639575558, a Type 1 (individual) record in the CMS NPPES registry.
Where does Denise Diaz practice?
The practice location on file with NPPES is in Chula Vista, 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 2016-12-30.