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Family Practice

Vivian Viera, MD

Works at hospitals in Del Rio, TX · Texas

Summary

Vivian Viera, MD (Family Practice) is listed by Medicare at 1 hospital in Del Rio, TX. NPI 1477536191. 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 Vivian Viera, 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

Family PracticePrimary specialty
YesAccepts Medicare assignment
41Years since medical school (graduated 1985)
Ponce School Of MedicineMedical school
FemaleGender (as listed)
United Medical CentersGroup practice

Quick answers

Which hospitals does Vivian Viera work at?
Medicare's official clinician data lists Vivian Viera at 1 hospital: Val Verde Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Vivian Viera see patients?
Medicare's clinician data lists 2 practice locations, including Eagle Pass, TX and Del Rio, TX. Call before your visit to confirm the address.
What is Vivian Viera's specialty?
Medicare lists Family Practice as the primary specialty.
Does Vivian Viera accept Medicare assignment?
Yes. Medicare's clinician data says Vivian Viera 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 Vivian Viera?
(830) 773-5358, as listed in official Medicare / NPI Registry data.
What is Vivian Viera's NPI number?
1477536191. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Vivian Viera works

Medicare's Facility Affiliation Data lists Vivian Viera 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 Vivian Viera is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Vivian Viera as a member of this group (CMS data updated 2026-10-02).

  • United Medical Centers24 clinicians in the group

Specialties

Find other Family Practice doctors in Texas →

Other family doctors in Eagle Pass

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

All family doctors in Eagle Pass →

Clinician information

CredentialMD
Medical schoolPonce School Of Medicine
Graduation year1985
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1477536191
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