Doctor profile · Federal record
Dr. Gareth Weiner, MD
Gastroenterology Physician (CMS: Gastroenterology) · Thornton, CO
- NPI 1003845249
- Accepts Medicare
- MIPS 54.2 / 100 · 2023
- 38 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
10001 N Washington St
Thornton, CO 802292050
(303) 252-4442
fax (303) 429-6714 - Mailing address
-
3333S Wadsworth Blvd D100
Lakewood, CO 802275117
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- November 9, 2015
- Year of graduation
- 1988 — 38 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Colorado #29683
- Medicaid
- CO #01296839
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1003845249. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
299
Distinct HCPCS
7
Medicare allowed
$48,379
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 75 | 75 | $82 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 67 | 67 | $247 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 66 | 66 | $157 | |
43248 |
Insertion of guide wire with dilation of esophagus using a flexible endoscope | 34 | 30 | $146 | |
G0121 |
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | 26 | 26 | $182 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 19 | 19 | $182 | |
45378 |
Diagnostic exam of large bowel using a flexible endoscope | 12 | 12 | $175 |
In context: peer comparison
Among 2 peers in Thornton Gastroenterology Physician, average services per provider: 36. This provider delivers 8.3× the peer median.Open Payments
Industry payments received
All-time total
$54,689
Transactions
150
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Genzyme Corporation | 15 | $19,256.29 | |
| Pfizer INC. | 20 | $14,223.22 | |
| Regeneron Healthcare Solutions, INC. | 22 | $11,640.43 | |
| Takeda Pharmaceuticals U.S.A., INC. | 25 | $4,701.27 | |
| E.R. Squibb & Sons, L.L.C. | 2 | $2,094.49 | |
| Celgene Corporation | 3 | $635.74 | |
| Janssen Biotech, INC. | 8 | $467.49 | |
| Abbvie INC. | 21 | $394.22 | |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | 11 | $216.78 | |
| Braintree Laboratories, INC. | 4 | $215.29 | |
| Phathom Pharmaceuticals, INC. | 4 | $185.57 | |
| Regeneron Pharmaceuticals, INC. | 1 | $146.49 | |
| Gilead Sciences, INC. | 8 | $144.48 | |
| Intercept Pharmaceuticals, INC. | 4 | $71.81 | |
| Ardelyx, INC. | 2 | $62.04 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
588
Patients
424
Total drug cost
$66,638
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Clenpiq (Sod Picosulf/Mag Ox/Citric Ac) | Brand | 127 | 127 | $22,051 |
| Sutab (Sod Sulf/Pot Chloride/Mag Sulf) | Brand | 116 | 115 | $19,827 |
| Pantoprazole Sodium | Generic | 100 | 38 | $2,173 |
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,Mag Sulfates) | Brand | 93 | 91 | $7,428 |
| Omeprazole | Generic | 83 | 31 | $932 |
| Dicyclomine Hcl | Generic | 22 | 0 | $863 |
| Budesonide Dr (Budesonide) | Brand | 13 | 0 | $3,413 |
| Clarithromycin | Generic | 12 | 11 | $372 |
| Amoxicillin | Generic | 11 | 11 | $59 |
| Linzess (Linaclotide) | Brand | 11 | 0 | $9,520 |
Hospital affiliations
Frequently asked questions
What is Dr. Gareth Weiner's medical specialty?
Dr. Gareth Weiner practices Gastroenterology Physician in Thornton, CO.
Where does Dr. Gareth Weiner practice?
Dr. Gareth Weiner practices at 10001 N Washington St, Thornton, CO 802292050. Office phone: 3032524442.
What is Dr. Gareth Weiner's NPI?
Dr. Gareth Weiner's National Provider Identifier (NPI) is 1003845249, issued by NPPES.
Does Dr. Gareth Weiner accept Medicare assignment?
Yes. Dr. Gareth Weiner accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gareth Weiner commonly perform?
Top Medicare-reported procedures in 2023: Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Biopsy of large bowel using a flexible endoscope (HCPCS 45380). Source: CMS Medicare Physician & Other Practitioners file.