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Emergency Medicine

John Riester, MD

Works at hospitals in Las Vegas, NV · Nashville, TN · Nevada, Tennessee

Summary

John Riester, MD (Emergency Medicine) is listed by Medicare at 3 hospitals in Las Vegas, NV and Nashville, TN. NPI 1972913127. 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 John Riester, 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
12Years since medical school (graduated 2014)
Ohio State University College Of MedicineMedical school
MaleGender (as listed)
Emergency Medicine Services of TN, PCGroup practice

Quick answers

Which hospitals does John Riester work at?
Medicare's official clinician data lists John Riester at 3 hospitals: Mountainview Hospital, Southern Hills Hospital and Medical Center and Tristar Centennial Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does John Riester see patients?
Medicare's clinician data lists 1 practice location in Nashville, TN. Call before your visit to confirm the address.
What is John Riester's specialty?
Medicare lists Emergency Medicine as the primary specialty.
Does John Riester accept Medicare assignment?
Yes. Medicare's clinician data says John Riester 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 John Riester?
(615) 342-1000, as listed in official Medicare / NPI Registry data.
What is John Riester's NPI number?
1972913127. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where John Riester works

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

Group practices

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

  • Emergency Medicine Services of TN, PC153 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Tennessee →

Other emergency medicine doctors in Nashville

Clinicians with the same Medicare primary specialty in Nashville, TN — not a recommendation.

All emergency medicine doctors in Nashville →

Clinician information

CredentialMD
Medical schoolOhio State University College Of Medicine
Graduation year2014
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1972913127
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