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

Individual provider Specialist · NPI 1003822065

Dr. Diane Irvine Duncan, MD is a Specialist in Fort Collins, Colorado. Practices as a sole proprietor. Licensed in Colorado.

Licensed in
CO
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1701 E Prospect Rd
Fort Collins, CO 80525-1307
Phone: (970) 493-7445
Fax: (970) 493-1775
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Specialist (primary) Taxonomy 174400000X · Licence 28327 (CO)

Record details

NPI number1003822065
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 31, 2006
Last updated in NPPESJuly 9, 2007

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