NPI Portal NPI Lookup & Verification

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

John Robert Guerra, D.O.

Obstetrics & Gynecology Physician in Mcallen, TX · enumerated 2006.

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

National Provider Identifier

1134143225

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Registry record

Entity type Individual (Type 1)
Name John Robert Guerra
Credential D.O.
Sex Male
Practice address Mcallen, TX, 78504
Phone (956) 686-3900
Fax (956) 686-3323
Enumeration date Jul 26, 2006
Last updated in NPPES Oct 20, 2011

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

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License J7505 (TX) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
122362004 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

Where does John Guerra practice?
The practice location on file with NPPES is in Mcallen, TX. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for John Guerra?
The National Provider Identifier (NPI) for John Guerra is 1134143225, 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 2011-10-20.