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Oscar A Alvarez, MD

Gastroenterology Physician in Harlingen, TX · enumerated 2006.

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

National Provider Identifier

1376565838

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Registry record

Entity type Individual (Type 1)
Name Oscar A Alvarez
Credential MD
Sex Male
Practice address 512 Victoria Ln Ste 2, Harlingen, TX, 78550
Phone (956) 365-4400
Fax (956) 365-4111
Enumeration date Jul 24, 2006
Last updated in NPPES Jul 14, 2022

Taxonomy & licenses

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License J5967 (TX) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
083176001 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.

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Frequently asked questions

How do I verify Oscar Alvarez's NPI record?
Cross-check NPI 1376565838 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1376565838 active?
Yes, as of the latest NPPES snapshot, NPI 1376565838 is active (record last updated 2022-07-14).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-14.