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Emergency Medicine

Stephen A. Ash, MD

Sees patients in Tempe, AZ · Arizona

Summary

Stephen A. Ash, MD (Emergency Medicine) is enrolled with Medicare at 1 practice location in Tempe, AZ. NPI 1437128279. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Stephen A. Ash, 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
43Years since medical school (graduated 1983)
University Of Louisville School Of MedicineMedical school
MaleGender (as listed)
Nextcare Arizona I JV LLCGroup practice

Quick answers

Where does Stephen A. Ash see patients?
Medicare's clinician data lists 1 practice location in Tempe, AZ. Call before your visit to confirm the address.
What is Stephen A. Ash's specialty?
Medicare lists Emergency Medicine as the primary specialty.
Does Stephen A. Ash accept Medicare assignment?
Yes. Medicare's clinician data says Stephen A. Ash 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 Stephen A. Ash?
(480) 924-8382, as listed in official Medicare / NPI Registry data.
What is Stephen A. Ash's NPI number?
1437128279. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Stephen A. Ash is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Stephen A. Ash as a member of this group (CMS data updated 2026-10-02).

  • Nextcare Arizona I JV LLC287 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Arizona →

Other emergency medicine doctors in Tempe

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

All emergency medicine doctors in Tempe →

Clinician information

CredentialMD
Medical schoolUniversity Of Louisville School Of Medicine
Graduation year1983
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1437128279
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians