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

Gareth R Weiner, MD

Individual provider Gastroenterology Physician · NPI 1003845249

Gareth R Weiner, MD is a Gastroenterology in Thornton, Colorado. Graduated from University of Colorado School of Medicine, Denver in 1988, 38 years ago. Practices with Rocky Mountain Gastroenterology Associates, PLLC, a 38-clinician group and accepts Medicare assignment. Licensed in Colorado.

Years since qualifying
38
Trained at
University of Colorado School of Medicine, Denver
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 →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

10001 N Washington St
Thornton, CO 80229-2050
Phone: (303) 252-4442
Fax: (303) 429-6714
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 29683 (CO)

Record details

NPI number1003845249
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 1, 2006
Last updated in NPPESNovember 9, 2015
Mailing address3333s Wadsworth Blvd D100, Lakewood, CO 80227-5117

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolUNIVERSITY OF COLORADO SCHOOL OF MEDICINE, DENVER
Graduated 1988 (38 years in practice)
Group practice Rocky Mountain Gastroenterology Associates, Pllc — 38 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Thornton