Christopher Haydek, MD
NPI 1164963336ActiveIndividual· Internal Medicine, Gastroenterology· Castle Rock, CO
Internal Medicine, Gastroenterology (MD) in Castle Rock, Colorado, trained at Loyola University of Chicago, Stritch School of Medicine (class of 2017). Their prescriptions cost Medicare Part D more than their services did: $350,247 for 489 claims, against $39,263 paid for services in 2024. Capsovision, Inc. was the largest of 21 companies reporting payments in 2025, $107,740 in all, mostly consulting fees.
Overview
| NPI | 1164963336 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Mar 20, 2017 |
| Last updated in NPPES | Oct 31, 2023 |
| Certified by provider | Oct 31, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | DR.0070241 | CO |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (CO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 180 |
|---|---|
| Services billed | 396 across 29 procedure codes |
| Paid by Medicare | $39,263 |
Part D prescriptions in 2024
| Prescriptions (claims) | 489 · 852 30-day fills |
|---|---|
| Patients | 210 |
| Total drug cost | $350,247 |
| Generic share | 70% of claims |
Education and affiliations
| Medical school | Loyola University of Chicago, Stritch School of Medicine |
|---|---|
| Graduation year | 2017 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- South Denver Gastroenterology, P.CLone Tree, CO · 54 clinicians
Hospital affiliations
- Adventhealth Castle RockCastle Rock, CO
- Adventhealth ParkerParker, CO
- Sky Ridge Medical CenterLone Tree, CO
Industry payments (Open Payments)
- 2025$107,740 · 115 payments from 21 companies
- 2024$2,873 · 131 payments from 23 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Capsovision, Inc. | $105,025 | 8 |
| Abbvie Inc. | $663.50 | 20 |
| Janssen Biotech, Inc. | $461.56 | 19 |
| Genzyme Corporation | $275.36 | 11 |
| Takeda Pharmaceuticals U.S.A., Inc. | $260.27 | 10 |
What the 2025 payments were for
- Consulting Fee$105,025 · 8 payments
- Food and Beverage$2,715 · 107 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Gastroenterology providers in Castle Rock
- 1093313900
- 1295344786
- 1619390234
- 1932038767
- 1205432507
- 1417271420
- 1811332364
- 1487099685
- 1942460209
- 1639331200
- 1912197005
All Internal Medicine, Gastroenterology providers in Colorado →