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Dr. Diana M Breyer, M.D.

Pulmonary Disease Physician in Fort Collins, CO · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1023088945

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Registry record

Entity type Individual (Type 1)
Name Dr. Diana M Breyer
Credential M.D.
Sex Female
Practice address 2121 E Harmony Rd, Suite 300, Fort Collins, CO, 80528
Phone (970) 224-9102
Fax (970) 224-9112
Enumeration date Jan 24, 2006
Last updated in NPPES Aug 16, 2016

Taxonomy & licenses

207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License DR.0037818 (CO) Secondary
207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License DR.0037818 (CO) Primary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License DR.0037818 (CO) Secondary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
17584281 Medicaid CO -
114261500 Medicaid WY -
290012386 Other CO RAILROAD MEDICARE

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Where does Diana Breyer practice?
The practice location on file with NPPES is in Fort Collins, CO. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Diana Breyer?
The National Provider Identifier (NPI) for Diana Breyer is 1023088945, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-08-16.