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Gastroenterology

Fernando E. Membreno, MD

Works at hospitals in Edinburg, TX · San Antonio, TX · Texas

Summary

Fernando E. Membreno, MD (Gastroenterology) is listed by Medicare at 3 hospitals in Edinburg, TX and San Antonio, TX. NPI 1942233929. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Fernando E. Membreno, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

GastroenterologyPrimary specialty
YesAccepts Medicare assignment
32Years since medical school (graduated 1994)
MaleGender (as listed)
Renaissance Medical FoundationGroup practice (+1 more)

Quick answers

Which hospitals does Fernando E. Membreno work at?
Medicare's official clinician data lists Fernando E. Membreno at 3 hospitals: Doctors Hosptal at Renaissance, Methodist Hospital and South Texas Health System. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Fernando E. Membreno see patients?
Medicare's clinician data lists 5 practice locations, including McAllen, TX and San Antonio, TX. Call before your visit to confirm the address.
What is Fernando E. Membreno's specialty?
Medicare lists Gastroenterology as the primary specialty, and also Internal Medicine.
Does Fernando E. Membreno accept Medicare assignment?
Yes. Medicare's clinician data says Fernando E. Membreno accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Fernando E. Membreno?
(956) 362-2410, as listed in official Medicare / NPI Registry data.
What is Fernando E. Membreno's NPI number?
1942233929. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Fernando E. Membreno works

Medicare's Facility Affiliation Data lists Fernando E. Membreno at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Fernando E. Membreno is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Fernando E. Membreno as a member of these groups (CMS data updated 2026-10-02).

  • Renaissance Medical Foundation181 clinicians in the group
  • Methodist Physician Practices PLLC175 clinicians in the group

Specialties

Find other Gastroenterology doctors in Texas →

Other gastroenterologists in McAllen

Clinicians with the same Medicare primary specialty in McAllen, TX — not a recommendation.

All gastroenterologists in McAllen →

Clinician information

CredentialMD
Graduation year1994
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1942233929
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians