Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alexa Castillo, RN

Registered Nurse in San Antonio, TX · enumerated 2018.

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

National Provider Identifier

1972082469

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Registry record

Entity type Individual (Type 1)

Name Alexa Castillo

Credential RN

Sex Female

Practice address 10609 W Ih 10 Ste 105, San Antonio, TX, 78230

Phone (210) 344-5437

Fax (210) 340-1259

Enumeration date Aug 7, 2018

Last updated in NPPES Aug 7, 2018

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 932842 (TX) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN credential

Other identifiers

Identifier	Type	State	Issuer
173913801	Medicaid	TX	-

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 1972082469 active?

Yes, as of the latest NPPES snapshot, NPI 1972082469 is active (record last updated 2018-08-07).

How do I verify Alexa Castillo's NPI record?

Cross-check NPI 1972082469 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-08-07.