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Orthopedic Surgery

Jon Hammarstedt, MD

Works at hospitals in Boulder, CO · Westminster, CO · Wray, CO · Colorado

Summary

Jon Hammarstedt, MD (Orthopedic Surgery) is listed by Medicare at 3 hospitals in Boulder, CO, Westminster, CO and Wray, CO. NPI 1427552355. 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 Jon Hammarstedt, 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
8Years since medical school (graduated 2018)
University Of Illinois College Of Med (chi/peor/rock/chm-Urb)Medical school
MaleGender (as listed)
Bouldercentre for Orthopedics PCGroup practice (+1 more)

Quick answers

Which hospitals does Jon Hammarstedt work at?
Medicare's official clinician data lists Jon Hammarstedt at 3 hospitals: Boulder Community Health, Centura Health-St Anthony North Health Campus and Wray Community District Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Jon Hammarstedt see patients?
Medicare's clinician data lists 3 practice locations, including Wray, CO, Broomfield, CO and Boulder, CO. Call before your visit to confirm the address.
What is Jon Hammarstedt's specialty?
Medicare lists Orthopedic Surgery as the primary specialty.
Does Jon Hammarstedt accept Medicare assignment?
Yes. Medicare's clinician data says Jon Hammarstedt 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 Jon Hammarstedt?
(970) 332-4811, as listed in official Medicare / NPI Registry data.
What is Jon Hammarstedt's NPI number?
1427552355. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Jon Hammarstedt works

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

Group practices

Medicare enrollment lists Jon Hammarstedt as a member of these groups (CMS data updated 2026-10-02).

  • Bouldercentre for Orthopedics PC58 clinicians in the group
  • Wray Community District Hospital30 clinicians in the group

Specialties

Find other Orthopedic Surgery doctors in Colorado →

Other orthopedic surgeons in Wray

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

All orthopedic surgeons in Wray →

Clinician information

CredentialMD
Medical schoolUniversity Of Illinois College Of Med (chi/peor/rock/chm-Urb)
Graduation year2018
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1427552355
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