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Emergency Medicine

Julio J. Velez Rivera, MD

Works at hospitals in San Juan, PR · Puerto Rico

Summary

Dr. Julio J. Velez Rivera, MD is an emergency medicine doctor at Avenida Juan Ponce De Leon Parada, 37 Hospital Auxilio Mutuo, Hato Rey, PR 00919. Phone: (787) 758-2000. Accepts Medicare assignment. NPI 1316401078. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

  • Specialty: Emergency medicine doctor (Medicare lists Emergency Medicine)
  • Address: Avenida Juan Ponce De Leon Parada, 37 Hospital Auxilio Mutuo, Hato Rey, PR 00919 · Directions
  • Phone: (787) 758‑2000
  • Medicare: Accepts Medicare assignment
  • Hospital: Auxilio Mutuo Hospital
  • Group practice: ER Specialized Care LLC
  • Medical school: University Of Puerto Rico School Of Medicine · graduated 2021 (5 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Julio J. Velez Rivera, 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 Julio J. Velez Rivera accept Medicare assignment?
Yes. Medicare's clinician data says Julio J. Velez Rivera 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 Julio J. Velez Rivera's NPI number?
1316401078. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Julio J. Velez Rivera works

Medicare's Facility Affiliation Data lists Julio J. Velez Rivera 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 Julio J. Velez Rivera is enrolled with Medicare (CMS data updated October 2, 2026).

  • Avenida Juan Ponce De Leon Parada, 37 Hospital Auxilio MutuoHato Rey, PR 00919 (787) 758‑2000

Group practices

Medicare enrollment lists Julio J. Velez Rivera as a member of this group (CMS data updated October 2, 2026).

  • ER Specialized Care LLC19 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Puerto Rico →

Other emergency medicine doctors in Hato Rey

Clinicians with the same Medicare primary specialty in Hato Rey, PR — not a recommendation.

All emergency medicine doctors in Hato Rey →

Other clinicians in ER Specialized Care LLC

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

Clinician information

CredentialMD
Medical schoolUniversity Of Puerto Rico School Of Medicine
Graduation year2021 (5 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1316401078
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