Doctor profile · Federal record
Dr. Tamas Otrok, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Longmont, CO
- NPI 1851386734
- Accepts Medicare
- 33 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1551 Professional Ln Unit 290
Longmont, CO 805016970
(303) 604-5000
fax (720) 890-0364 - Mailing address
-
382 S Arthur Ave
Louisville, CO 800273094
Credentials & registration
- NPI registered
- September 2005 — 21 yrs on file
- Profile last updated
- March 6, 2026
- Year of graduation
- 1993 — 33 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Colorado #DR.0055835
- Medicaid
- CO #18330258
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1851386734. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
537
Distinct HCPCS
10
Medicare allowed
$56,754
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
G0500 |
Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito | 104 | 104 | $5 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 82 | 82 | $131 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 55 | 55 | $249 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 49 | 49 | $85 | |
99153 |
Use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes | 44 | 38 | $11 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 41 | 36 | $91 | |
43248 |
Insertion of guide wire with dilation of esophagus using a flexible endoscope | 33 | 32 | $150 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 26 | 26 | $156 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 25 | 23 | $127 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 24 | 24 | $129 |
In context: peer comparison
Among 6 peers in Longmont Gastroenterology Physician, average services per provider: 46. This provider delivers 12× the peer median.Open Payments
Industry payments received
All-time total
$3,017
Transactions
117
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 32 | $871.77 | |
| Takeda Pharmaceuticals U.S.A., INC. | 27 | $479.83 | |
| Lilly USA, LLC | 7 | $251.02 | |
| Ardelyx, INC. | 6 | $187.63 | |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | 9 | $178.52 | |
| Genzyme Corporation | 4 | $171.42 | |
| Gilead Sciences, INC. | 7 | $161.55 | |
| Regeneron Healthcare Solutions, INC. | 5 | $137.91 | |
| Madrigal Pharmaceuticals | 3 | $89.91 | |
| Pfizer INC. | 5 | $87.21 | |
| Janssen Biotech, INC. | 4 | $82.28 | |
| Phathom Pharmaceuticals, INC. | 1 | $52.78 | |
| Aimmune Therapeutics, INC. | 3 | $52.54 | |
| Celltrion USA INC. | 2 | $46.67 | |
| Intercept Pharmaceuticals, INC. | 2 | $38.32 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
165
Patients
88
Total drug cost
$4,720
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Omeprazole | Generic | 69 | 39 | $933 |
| Gavilyte-C (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 52 | 49 | $892 |
| Pantoprazole Sodium | Generic | 17 | 0 | $338 |
| Cholestyramine (Cholestyramine (With Sugar)) | Brand | 16 | 0 | $1,285 |
| Budesonide Dr (Budesonide) | Brand | 11 | 0 | $1,272 |
Hospital affiliations
Frequently asked questions
What is Dr. Tamas Otrok's medical specialty?
Dr. Tamas Otrok practices Gastroenterology Physician in Longmont, CO.
Where does Dr. Tamas Otrok practice?
Dr. Tamas Otrok practices at 1551 Professional Ln Unit 290, Longmont, CO 805016970. Office phone: 3036045000.
What is Dr. Tamas Otrok's NPI?
Dr. Tamas Otrok's National Provider Identifier (NPI) is 1851386734, issued by NPPES.
Does Dr. Tamas Otrok accept Medicare assignment?
Yes. Dr. Tamas Otrok accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Tamas Otrok commonly perform?
Top Medicare-reported procedures in 2023: Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (HCPCS G0500); Biopsy of large bowel using a flexible endoscope (HCPCS 45380); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385). Source: CMS Medicare Physician & Other Practitioners file.