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Emergency Medicine

Ariana S. Najera, DO

Works at hospitals in Amarillo, TX · El Paso, TX · Texas

Summary

Dr. Ariana S. Najera, DO is an emergency medicine doctor at 1501 S Coulter St, NW Tx Healthcare Sys, Amarillo, TX 79106. Phone: (561) 203-0611. Accepts Medicare assignment. NPI 1780372680. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

From official Medicare data

This page shows what Medicare's official clinician data says about Ariana S. Najera, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Ariana S. Najera accept Medicare assignment?
Yes. Medicare's clinician data says Ariana S. Najera accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
What is Ariana S. Najera's NPI number?
1780372680. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Ariana S. Najera works

Medicare's Facility Affiliation Data lists Ariana S. Najera at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Ariana S. Najera is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Ariana S. Najera as a member of this group (CMS data updated October 2, 2026).

  • Em Alliance Texas PLLC82 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Texas →

Other emergency medicine doctors in Amarillo

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

All emergency medicine doctors in Amarillo →

Other clinicians in Em Alliance Texas PLLC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialDO
Graduation year2023 (3 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1780372680
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 October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  5. Medicare Care Compare — official Medicare tool to look up clinicians