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

Dr. Ann Therese Colgan, MD

Individual provider Adult Medicine Physician · NPI 1487629309

Dr. Ann Therese Colgan, MD is an Adult Medicine Physician in Greeley, Colorado. Licensed in Colorado. Registered with an NPI since 2006.

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

6801 W 20th St Ste 101
Greeley, CO 80634
Phone: (970) 378-8000
Fax: (970) 378-8088
Show map & directions

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 32559 (CO)
Adult Medicine Physician Taxonomy 207QA0505X · Licence 32559 (CO)
Adolescent Medicine (Family Medicine) Physician Taxonomy 207QA0000X · Licence 32559 (CO)

Record details

NPI number1487629309
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 22, 2006
Last updated in NPPESMarch 11, 2020
Certification dateMarch 11, 2020

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