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

James John Gregory, MD

Individual provider Family Medicine Physician · NPI 1437105210

James John Gregory, MD is a Family Medicine Physician in Thornton, Colorado. Licensed in Colorado. Registered with an NPI since 2006.

Licensed in
CO
In the registry since
2006
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

2200 E 104 Ave Ste 115
Thornton, CO 80233
Phone: (303) 452-2766
Fax: (303) 252-8694
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 17098 (CO)

Record details

NPI number1437105210
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 25, 2006
Last updated in NPPESDecember 15, 2011
Mailing address124 South Garfield Street, Denver, CO 80209

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