Grant Michael Clark, M.D.
NPI 1700029626ActiveIndividual· Radiology, Radiation Oncology· Knoxville, TN
Radiology, Radiation Oncology (M.D.) in Knoxville, Tennessee, trained at West Virginia University School of Medicine (class of 2009). 382 Medicare patients in 2024, $261,256 paid; nearly all of their 423 Part D prescriptions were generic (94%).
Overview
| NPI | 1700029626 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 7, 2009 |
| Last updated in NPPES | May 18, 2026 |
| Certified by provider | May 18, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Radiation Oncology Primary | 2085R0001X | 51020 | TN |
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 (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 382 |
|---|---|
| Services billed | 3,120 across 34 procedure codes |
| Paid by Medicare | $261,256 |
Part D prescriptions in 2024
| Prescriptions (claims) | 423 · 556 30-day fills |
|---|---|
| Patients | 174 |
| Total drug cost | $10,750 |
| Generic share | 94% of claims |
Education and affiliations
| Medical school | West Virginia University School of Medicine |
|---|---|
| Graduation year | 2009 |
| Medicare specialty | Radiation Oncology |
Medical group
- East Tennessee Radiation Oncology, P.C.Crossville, TN · 7 clinicians
Hospital affiliations
- Cumberland Medical CenterCrossville, TN
- Fort Sanders Regional Medical CenterKnoxville, TN
- Leconte Medical CenterSevierville, TN
- Morristown Hamblen Hospital AssociationMorristown, TN
- Parkwest Medical CenterKnoxville, TN
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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