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

Danielle Diaz, FNP

Nurse Practitioner in San Antonio, TX · enumerated 2007.

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

National Provider Identifier

1043421951

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Registry record

Entity type Individual (Type 1)

Name Danielle Diaz

Credential FNP

Sex Female

Practice address San Antonio, TX, 78229

Phone (210) 614-8612

Enumeration date May 24, 2007

Last updated in NPPES Feb 1, 2012

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

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 664087 (TX) Primary

FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan. About the FNP credential

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 Danielle Diaz practice?

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

What is the NPI number for Danielle Diaz?

The National Provider Identifier (NPI) for Danielle Diaz is 1043421951, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-02-01.