Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Araceli Casillas Martinez

Registered Nurse in Santa Ana, CA · enumerated 2022.

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

National Provider Identifier

1912615964

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Registry record

Entity type Individual (Type 1)

Name Araceli Casillas Martinez

Sex Female

Practice address 405 W 5th St, Santa Ana, CA, 92701

Phone (562) 665-3889

Enumeration date Nov 8, 2022

Last updated in NPPES Nov 8, 2022

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 95200394 (CA) 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

How do I verify Araceli Martinez's NPI record?

Cross-check NPI 1912615964 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1912615964 active?

Yes, as of the latest NPPES snapshot, NPI 1912615964 is active (record last updated 2022-11-08).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-11-08.