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

Mr. Luis Castillo, RN BS

Registered Nurse in Alice, TX · enumerated 2009.

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

National Provider Identifier

1922230481

Verified

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Registry record

Entity type Individual (Type 1)

Name Mr. Luis Castillo

Credential RN BS

Sex Male

Practice address Alice, TX, 78333

Phone (361) 562-1762

Enumeration date Aug 18, 2009

Last updated in NPPES Aug 18, 2009

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

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 593987 (TX) 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

Is NPI 1922230481 active?

Yes, as of the latest NPPES snapshot, NPI 1922230481 is active (record last updated 2009-08-18).

How do I verify Luis Castillo's NPI record?

Cross-check NPI 1922230481 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-08-18.