Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Guillermo R Perez, MD

Individual provider Surgery Physician · NPI 1174609564

Guillermo R Perez, MD is a General Surgery in Edinburg, Texas. Qualified in 1991, 35 years ago. Practices with Upper Valley Interventional Nephrology, PLLC, an 8-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
35
Licensed in
TX
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

5015 S McColl Rd
Edinburg, TX 78539-8080
Phone: (956) 627-3686
Fax: (956) 664-0531
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence L7519 (TX)
Trauma Surgery Physician Taxonomy 2086S0127X · Licence L7519 (TX)

Record details

NPI number1174609564
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedOctober 27, 2006
Last updated in NPPESFebruary 22, 2016

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGENERAL SURGERY
Medical schoolOTHER
Graduated 1991 (35 years in practice)
Group practice Upper Valley Interventional Nephrology, Pllc — 8 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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