Frederick W. Willison, MD
NPI 1932177011ActiveIndividual· Radiology, Radiation Oncology· Tulsa, OK
Radiology, Radiation Oncology (MD) with Northeastern Health System, practicing in Tulsa, Oklahoma. Mostly services rather than prescriptions: Medicare paid $145,124 for 74 patients in 2024, with only 27 Part D claims. Novartis Pharmaceuticals Corporation reported $30.99 in payments in 2025, mostly food and beverage. Lists Cherokee Nation W W Hastings Indian Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1932177011 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 14, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Radiation Oncology Primary | 2085R0001X | 20141 | OK |
| Radiology, Radiation Oncology | 2085R0001X | 0101052684 | VA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Radiation Oncology (MO); Practitioner - Radiation Oncology (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 74 |
|---|---|
| Services billed | 2,576 across 21 procedure codes |
| Paid by Medicare | $145,124 |
Part D prescriptions in 2024
| Prescriptions (claims) | 27 · 27 30-day fills |
|---|---|
| Patients | 23 |
| Total drug cost | $599.69 |
| Generic share | 93% of claims |
Education and affiliations
| Graduation year | 1989 |
|---|---|
| Medicare specialty | Radiation Oncology |
Medical group
- Northeastern Health SystemTahlequah, OK · 103 clinicians
Hospital affiliations
- Cherokee Nation W W Hastings Indian HospitalTahlequah, OK
- Northeastern Health SystemTahlequah, OK
- Saint Francis Hospital, IncTulsa, OK
Industry payments (Open Payments)
- 2025$30.99 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $30.99 | 1 |
What the 2025 payments were for
- Food and Beverage$30.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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