Gareth R. Weiner, MD
Gastroenterology Physician · Thornton, CO
Gareth R. Weiner, MD is a gastroenterology physician with a practice address in Thornton, Colorado, and NPI 1003845249, issued on Jul 1, 2006. Check the license (Colorado 29683, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Gareth R. Weiner
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 29683 CO
Self-reported in NPPES; status is on the state search - Practice location
- 10001 N Washington St, Thornton, CO 80229
- Phone
- (303) 252-4442
- Enumerated
- Jul 1, 2006
- Record last updated
- Nov 9, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (303) 429-6714
- Medicaid ID
- 01296839 CO
- Medicare enrollment
- Enrolled (PECOS I20100802000685); accepts Medicare assignment
- Medical or professional school
- University Of Colorado School Of Medicine, Denver, 1988
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 334 in Colorado → Look up another NPI →
Also registered at 10001 N Washington St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sam Anouna, M.D.Gastroenterology Physician1639119365
- Lisa Brill, ODOptometrist1063443323
- Paul Deneault, M.D.Gastroenterology Physician1346276177
- Ronald Faulkner, ODOptometrist1215965835
- Stephen Humphrey, DDSGeneral Practice Dentistry1689647539
- John May, ODOptometrist1154351732
Verify Gareth R. Weiner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 29683Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
26% fewer Medicare Part D claims than the average gastroenterology physician in 2024
603 Medicare Part D claims for 376 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims.
Most prescribed
- Sod Sulf-Potass Sulf-Mag Sulf179 claims
- Pantoprazole Sodium126 claims
- Omeprazole75 claims
- Sutab75 claims
- Clenpiq19 claims
- Dicyclomine Hcl17 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 54.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $54,689.17
162 payments; by number, the most common kind was food and beverage; the largest payer was Genzyme Corporation. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Rocky Mountain Gastroenterology Associates, PLLCThornton, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gareth R. Weiner among 334 gastroenterology physician records in Colorado
Gareth R. Weiner, MD is one of 334 gastroenterology physician records with a practice address in Colorado. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 53% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated1988 · median 2003 among the 258 with a school on file
- Record last updated2015 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Colorado
There are 334 gastroenterology physician records in Colorado.
All 334 in Colorado → Every provider in Thornton → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Sam Anouna, M.D.Thornton, CO 802291639119365
- Paul Deneault, M.D.Thornton, CO 802291346276177
- James Higham-Kessler, M.D.Thornton, CO 802291003105636
- Ajit Ramadugu, M.D.Thornton, CO 802291316473762
- Shazad Rana, M.D.Thornton, CO 802291285670323
- Bruce Walker, MDThornton, CO 802291790717486
- Bruce Weber, D.O.Thornton, CO 802291811972219
- John Goff, M.D.Lakewood, CO 802281942231832
Common questions
What is Gareth R. Weiner, MD's NPI number?
Gareth R. Weiner, MD's National Provider Identifier (NPI) is 1003845249, issued on Jul 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gareth R. Weiner, MD located?
The NPPES record lists a practice address at 10001 N Washington St, Thornton, CO, 80229. Phone: (303) 252-4442. Providers update this record themselves, so call before visiting.
How can I verify Gareth R. Weiner, MD's license?
NPPES lists Colorado license number 29683, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gareth R. Weiner, MD prescribe under Medicare Part D?
In 2024, Gareth R. Weiner, MD had 603 Medicare Part D claims for 376 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Gareth R. Weiner, MD's MIPS final score?
The 2023 MIPS final score is 54.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.