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Orthopedic Surgery

Erik R. Dorf, MD

Works at hospitals in Salida, CO · Kremmling, CO · Montrose, CO … · Colorado

Summary

Dr. Erik R. Dorf, MD is an orthopedic surgeon at 1000 Granby Park Dr S, Granby, CO 80446. Phone: (970) 724-3442. Accepts Medicare assignment. In 2024, Erik R. Dorf had 487 Original Medicare patients and 3,314 services. NPI 1891902789. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Erik R. Dorf, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Erik R. Dorf accept Medicare assignment?
Yes. Medicare's clinician data says Erik R. Dorf accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Erik R. Dorf see?
In 2024, CMS data shows 487 Original Medicare patients and 3,314 services for Erik R. Dorf. This counts Original Medicare only and measures volume, not quality.
What is Erik R. Dorf's NPI number?
1891902789. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Erik R. Dorf, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients487
Services billed to Medicare3,314
Different services or procedures103
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)583 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)415 services
  3. Aspiration and/or injection of fluid from small joint (20600)174 services
  4. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)134 services
  5. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)125 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • Arthritis69%
  • High cholesterol61%
  • High blood pressure45%
  • Ischemic heart disease16%
  • Osteoporosis15%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)14%

Hospitals where Erik R. Dorf works

Medicare's Facility Affiliation Data lists Erik R. Dorf at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Heart of the Rockies Regional Medical CenterSalida, CO · Critical Access Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 061322
  • Middle Park Medical CenterKremmling, CO · Critical Access Hospital · Emergency services: listed by Medicare · CCN 061318
  • Montrose Regional HealthMontrose, CO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 060006
  • Vail Health HospitalVail, CO · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 060096
  • Valley View Hospital AssociationGlenwood Springs, CO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 060075

Practice locations

Addresses where Erik R. Dorf is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Erik R. Dorf as a member of these groups (CMS data updated October 2, 2026).

  • Kremmling Memorial Hospital District38 clinicians in the group
  • Vail-Summit Orthopaedics PC32 clinicians in the group

Specialties

Find other Orthopedic Surgery doctors in Colorado →

Other orthopedic surgeons in Colorado

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

All orthopedic surgeons in Colorado →

Other clinicians in Kremmling Memorial Hospital District

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolUniversity Of Colorado School Of Medicine, Denver
Graduation year2002 (24 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1891902789
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 October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians