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Emergency Medicine

Louis E. Velasco, MD

Works at hospitals in Mesa, AZ · Oro Valley, AZ · Tucson, AZ · Arizona

Summary

Louis E. Velasco, MD (Emergency Medicine) is listed by Medicare at 3 hospitals in Mesa, AZ, Oro Valley, AZ and Tucson, AZ. NPI 1629102363. 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 Louis E. Velasco, 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

Emergency MedicinePrimary specialty
YesAccepts Medicare assignment
24Years since medical school (graduated 2002)
MaleGender (as listed)
Northwest HBP Medical Services LLCGroup practice (+2 more)

Quick answers

Which hospitals does Louis E. Velasco work at?
Medicare's official clinician data lists Louis E. Velasco at 3 hospitals: HonorHealth Four Peaks Medical Center, Oro Valley Hospital and Tucson Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Louis E. Velasco see patients?
Medicare's clinician data lists 5 practice locations, including Tucson, AZ, Tempe, AZ and Florence, AZ. Call before your visit to confirm the address.
What is Louis E. Velasco's specialty?
Medicare lists Emergency Medicine as the primary specialty.
Does Louis E. Velasco accept Medicare assignment?
Yes. Medicare's clinician data says Louis E. Velasco 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 Louis E. Velasco?
(520) 229-2657, as listed in official Medicare / NPI Registry data.
What is Louis E. Velasco's NPI number?
1629102363. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Louis E. Velasco works

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

Group practices

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

  • Northwest HBP Medical Services LLC284 clinicians in the group
  • Ies Arizona PLLC52 clinicians in the group
  • Usacs Emergency Medicine of Arizona LLC35 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Arizona →

Other emergency medicine doctors in Tucson

Clinicians with the same Medicare primary specialty in Tucson, AZ — not a recommendation.

All emergency medicine doctors in Tucson →

Clinician information

CredentialMD
Graduation year2002
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1629102363
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