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Orthopedic Surgery

Robert Grunfeld, MD

Works at hospitals in Gillette, WY · Buffalo, WY · Spearfish, SD … · Wyoming, South Dakota

Summary

Robert Grunfeld, MD (Orthopedic Surgery) is listed by Medicare at 4 hospitals in Gillette, WY, Buffalo, WY and Spearfish, SD and other places. NPI 1225264344. 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 Robert Grunfeld, 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

Orthopedic SurgeryPrimary specialty
YesAccepts Medicare assignment
17Years since medical school (graduated 2009)
Pennsylvania State University College Of MedicineMedical school
MaleGender (as listed)
Black Hills Orthopedic and Spine Center of Wyoming PCGroup practice

Quick answers

Which hospitals does Robert Grunfeld work at?
Medicare's official clinician data lists Robert Grunfeld at 4 hospitals: Campbell County Health, Johnson County Healthcare Center, Monument Health Spearfish Hospital and Sheridan Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Robert Grunfeld see patients?
Medicare's clinician data lists 1 practice location in Gillette, WY. Call before your visit to confirm the address.
What is Robert Grunfeld's specialty?
Medicare lists Orthopedic Surgery as the primary specialty.
Does Robert Grunfeld accept Medicare assignment?
Yes. Medicare's clinician data says Robert Grunfeld 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 Robert Grunfeld?
(800) 446-9556, as listed in official Medicare / NPI Registry data.
What is Robert Grunfeld's NPI number?
1225264344. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Robert Grunfeld works

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

Group practices

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

  • Black Hills Orthopedic and Spine Center of Wyoming PC10 clinicians in the group

Specialties

Find other Orthopedic Surgery doctors in Wyoming →

Other orthopedic surgeons in Wyoming

Clinicians with the same Medicare primary specialty in Wyoming — not a recommendation.

All orthopedic surgeons in Wyoming →

Clinician information

CredentialMD
Medical schoolPennsylvania State University College Of Medicine
Graduation year2009
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1225264344
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