Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Diana M Breyer, MD

Individual provider Critical Care Medicine (Internal Medicine) Physician · NPI 1023088945

Dr. Diana M Breyer, MD is a Critical Care (Intensivists) in Fort Collins, Colorado. Graduated from Saint Louis University School of Medicine in 1993, 33 years ago. Practices with Poudre Valley Medical Group LLC, a 2,416-clinician group and accepts Medicare assignment. Licensed in Colorado.

Years since qualifying
33
Trained at
Saint Louis University School of Medicine
Licensed in
CO
In the registry since
2006
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

2121 E Harmony Rd Ste 300
Fort Collins, CO 80528-3400
Phone: (970) 224-9102
Fax: (970) 224-9112
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence DR.0037818 (CO)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence DR.0037818 (CO)
Internal Medicine Physician Taxonomy 207R00000X · Licence DR.0037818 (CO)

Record details

NPI number1023088945
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 24, 2006
Last updated in NPPESAugust 16, 2016

Medicare enrollment

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

Medicare specialtyCRITICAL CARE (INTENSIVISTS)
Also practisesINTERNAL MEDICINE, PULMONARY DISEASE
Medical schoolSAINT LOUIS UNIVERSITY SCHOOL OF MEDICINE
Graduated 1993 (33 years in practice)
Group practice Poudre Valley Medical Group Llc — 2416 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Fort Collins