Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Diana Grace Reyes De Leon

Primary Care Nurse Practitioner in Sylmar, CA · enumerated 2021.

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

National Provider Identifier

1043976970

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Registry record

Entity type Individual (Type 1)

Name Ms. Diana Grace Reyes De Leon

Sex Female

Practice address 12376 Twilight Ave, Sylmar, CA, 91342

Phone (818) 648-0248

Enumeration date Nov 15, 2021

Last updated in NPPES Nov 15, 2021

Taxonomy & licenses

363LP2300X Primary Care Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95018486 (CA) Primary

163W00000X Registered Nurse Nursing Service Providers · License 95062138 (CA) Secondary

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

How do I verify Diana De Leon's NPI record?

Cross-check NPI 1043976970 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1043976970 active?

Yes, as of the latest NPPES snapshot, NPI 1043976970 is active (record last updated 2021-11-15).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-15.