Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Antonio S Alviar Jr., RN

Administrator Registered Nurse in Harlingen, TX · enumerated 2018 · practices at Santa Cruz Health Services, Inc.

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

National Provider Identifier

1245730837

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Registry record

Entity type Individual (Type 1)

Name Mr. Antonio S Alviar Jr.

Credential RN

Sex Male

Practice address 2102 W Teege Ave, Harlingen, TX, 78550

Phone (956) 412-3337

Fax (956) 412-3338

Enumeration date Feb 20, 2018

Last updated in NPPES Feb 11, 2021

Taxonomy & licenses

163WA2000X Administrator Registered Nurse Nursing Service Providers · License 532547 (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
1790847531	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

Where does Antonio Alviar practice?

The practice location on file with NPPES is in Harlingen, TX. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Antonio Alviar?

The National Provider Identifier (NPI) for Antonio Alviar is 1245730837, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-02-11.