Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Marc Elliott Breen

Individual provider Emergency Medicine Physician · NPI 1831399286

Marc Elliott Breen practises Emergency Medicine in Fort Collins, Colorado. Graduated from Texas Tech University Health Science Center School of Medicine in 2005, 21 years ago. Practices with Emergency Physicians of the Rockies, PC, a 79-clinician group and accepts Medicare assignment. Licensed in Colorado and Illinois.

Years since qualifying
21
Trained at
Texas Tech University Health Science Center School of Medicine
Licensed in
CO, IL
In the registry since
2007
Specialties on file
3
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Practice location Address checks out

1024 S Lemay Ave
Fort Collins, CO 80524-3929 Not confirmed with CMS for 11 years — call before visiting
Phone: (970) 495-7000
Fax: (303) 306-7753
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence DR.0047871 (CO)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 036118981 (IL)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 47871 (CO)

Record details

NPI number1831399286
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedJuly 24, 2007
Last updated in NPPESJuly 14, 2015

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyEMERGENCY MEDICINE
Medical schoolTEXAS TECH UNIVERSITY HEALTH SCIENCE CENTER SCHOOL OF MEDICINE
Graduated 2005 (21 years in practice)
Group practice Emergency Physicians Of The Rockies, Pc — 79 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients326
Services billed 495 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Emergency Physicians of the Rockies, PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 79 clinicians in the practice; 12 are shown here.

Other providers in Fort Collins