Quick answers
- Which hospitals does Marc E. Breen work at?
- Medicare's official clinician data lists Marc E. Breen at 3 hospitals: Medical Center of the Rockies, Poudre Valley Hospital and UCHealth Greeley Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Marc E. Breen see patients?
- Medicare's clinician data lists 1 practice location in Fort Collins, CO. Call before your visit to confirm the address.
- What is Marc E. Breen's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Marc E. Breen accept Medicare assignment?
- Yes. Medicare's clinician data says Marc E. Breen 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 Marc E. Breen?
- (970) 495-7000, as listed in official Medicare / NPI Registry data.
- What is Marc E. Breen's NPI number?
- 1831399286. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Marc E. Breen works
Medicare's Facility Affiliation Data lists Marc E. Breen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Medical Center of the RockiesLoveland, CO · Acute Care Hospital · CCN 060119
- Poudre Valley HospitalFort Collins, CO · Acute Care Hospital · CCN 060010
- UCHealth Greeley HospitalGreeley, CO · Acute Care Hospital · CCN 060131
Practice locations
Addresses where Marc E. Breen is enrolled with Medicare (CMS data updated 2026-10-02).
- 1024 S Lemay Ave, Poudre Valley HospitalFort Collins, CO 80524 (970) 495‑7000
Group practices
Medicare enrollment lists Marc E. Breen as a member of this group (CMS data updated 2026-10-02).
- Emergency Physicians of the Rockies, PC80 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Fort Collins
Clinicians with the same Medicare primary specialty in Fort Collins, CO — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Texas Tech University Health Science Center School Of Medicine |
| Graduation year | 2005 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1831399286 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians