Mark A. Chidel, MD
NPI 1780711366ActiveIndividual· Radiology, Radiation Oncology· Denver, CO
Radiology, Radiation Oncology (MD) in Denver, Colorado, trained at University of Michigan Medical School (class of 1995). 35 Medicare patients in 2024, $31,472 paid; nearly all of their 87 Part D prescriptions were generic (99%). Gt Medical Technologies, Inc was the largest of 3 companies reporting payments in 2025, $900.77 in all, mostly food and beverage.
Overview
| NPI | 1780711366 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Feb 28, 2007 |
| Last updated in NPPES | Jun 23, 2021 |
| Certified by provider | Jun 23, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Radiation Oncology Primary | 2085R0001X | 40739 | 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 - Radiation Oncology (CO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 35 |
|---|---|
| Services billed | 386 across 25 procedure codes |
| Paid by Medicare | $31,472 |
Part D prescriptions in 2024
| Prescriptions (claims) | 87 · 125 30-day fills |
|---|---|
| Patients | 33 |
| Total drug cost | $1,804 |
| Generic share | 99% of claims |
Education and affiliations
| Medical school | University of Michigan Medical School |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Radiation Oncology |
Medical groups
- Colorado Permanente Medical Group PCDenver, CO · 1,327 clinicians
- Intermountain Medical Group Denver LLCBroomfield, CO · 568 clinicians
Hospital affiliations
- Good Samaritan Medical Center LLCLafayette, CO
- HCA Healthone Presbyterian St. LukesDenver, CO
- Hca-Healthone DBA Swedish Medical CenterEnglewood, CO
- Saint Joseph HospitalDenver, CO
Industry payments (Open Payments)
- 2025$900.77 · 11 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Gt Medical Technologies, Inc | $860.08 | 9 |
| Siemens Medical Solutions USA, Inc. | $23.02 | 1 |
| Novocure Inc. | $17.67 | 1 |
What the 2025 payments were for
- Food and Beverage$900.77 · 11 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Radiology, Radiation Oncology providers in Denver
- 1275740508
- 1063322915
- 1518609452
- 1801576871
- 1700046166
- 1942609201
- 1689720260
- 1285834945
- 1043743883
- 1679740914
- 1811971542
- 1861619173