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

Guillermo R Perez, MD

Surgery Physician in Edinburg, TX · enumerated 2006.

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

National Provider Identifier

1174609564

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Registry record

Entity type Individual (Type 1)

Name Guillermo R Perez

Credential MD

Sex Male

Practice address Edinburg, TX, 78539

Phone (956) 627-3686

Fax (956) 664-0531

Enumeration date Oct 27, 2006

Last updated in NPPES Feb 22, 2016

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

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License L7519 (TX) Primary

2086S0127X Trauma Surgery Physician Allopathic & Osteopathic Physicians · License L7519 (TX) Secondary

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
163901503	Medicaid	TX	-
163901502	Medicaid	TX	-
8AJ752	Other	TX	BCBS
TXB109453	Other	TX	MEDICARE
P00221107	Other	TX	RAILROAD
P00911268	Other	TX	RAILROAD MEDICARE
163901505	Medicaid	TX	-
163901504	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

What is the NPI number for Guillermo Perez?

The National Provider Identifier (NPI) for Guillermo Perez is 1174609564, a Type 1 (individual) record in the CMS NPPES registry.

Where does Guillermo Perez practice?

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

Other providers at this practice address

Browse all →

Guillermo R Perez MD PA Surgery Physician · Edinburg, TX NPI 1851519136 Advanced Vein Care Clinic Surgery Physician · Edinburg, TX NPI 1083926737

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-02-22.