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Emergency Medicine

Gregory D. Wiener, MD

Works at hospitals in Steamboat Springs, CO · Vail, CO · Colorado

Summary

Gregory D. Wiener, MD (Emergency Medicine) is listed by Medicare at 2 hospitals in Steamboat Springs, CO and Vail, CO. NPI 1487187787. 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 Gregory D. Wiener, 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
9Years since medical school (graduated 2017)
University Of Colorado School Of Medicine, DenverMedical school
MaleGender (as listed)
Yampa Valley Medical CenterGroup practice (+1 more)

Quick answers

Which hospitals does Gregory D. Wiener work at?
Medicare's official clinician data lists Gregory D. Wiener at 2 hospitals: UCHealth Yampa Valley Medical Center and Vail Health Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Gregory D. Wiener see patients?
Medicare's clinician data lists 2 practice locations, including Steamboat Spr, CO and Vail, CO. Call before your visit to confirm the address.
What is Gregory D. Wiener's specialty?
Medicare lists Emergency Medicine as the primary specialty.
Does Gregory D. Wiener accept Medicare assignment?
Yes. Medicare's clinician data says Gregory D. Wiener 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 Gregory D. Wiener?
(970) 879-1322, as listed in official Medicare / NPI Registry data.
What is Gregory D. Wiener's NPI number?
1487187787. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Gregory D. Wiener works

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

Group practices

Medicare enrollment lists Gregory D. Wiener as a member of these groups (CMS data updated 2026-10-02).

  • Yampa Valley Medical Center131 clinicians in the group
  • Vail Valley Emergency Physicians PC12 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Colorado →

Other emergency medicine doctors in Steamboat Spr

Clinicians with the same Medicare primary specialty in Steamboat Spr, CO — not a recommendation.

All emergency medicine doctors in Steamboat Spr →

Clinician information

CredentialMD
Medical schoolUniversity Of Colorado School Of Medicine, Denver
Graduation year2017
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1487187787
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