Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Isaac Castillo

Peer Specialist in Santa Ana, CA · enumerated 2023.

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

National Provider Identifier

1417726514

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Registry record

Entity type Individual (Type 1)

Name Isaac Castillo

Sex Male

Practice address 801 Parkcenter Dr Ste 235, Santa Ana, CA, 92705

Phone (714) 948-7970

Enumeration date Dec 29, 2023

Last updated in NPPES Dec 29, 2023

Taxonomy & licenses

175T00000X Peer Specialist 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.

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Frequently asked questions

How do I verify Isaac Castillo's NPI record?

Cross-check NPI 1417726514 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1417726514 active?

Yes, as of the latest NPPES snapshot, NPI 1417726514 is active (record last updated 2023-12-29).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-12-29.