Paul F. Oneill, M.D.
NPI 1548262611ActiveIndividual· Internal Medicine, Hematology & Oncology· McHenry, IL
Internal Medicine, Hematology & Oncology (M.D.) with The Iowa Clinic PC and 1 other group, practicing in McHenry, Illinois. Their prescriptions cost Medicare Part D more than their services did: $1,034,964 for 584 claims, against $36,491 paid for services in 2024. Exelixis Inc. was the largest of 3 companies reporting payments in 2025, $86.36 in all, mostly food and beverage. Lists Havasu Regional Medical Center and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1548262611 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 10, 2005 |
| Last updated in NPPES | Jul 28, 2025 |
| Certified by provider | Jul 28, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 036163729 | IL |
| Specialist | 174400000X | 22764 | AZ |
| Internal Medicine, Hematology & Oncology | 207RH0003X | 7371256 | ID |
| Internal Medicine, Hematology & Oncology | 207RH0003X | 22764 | AZ |
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 - Hematology/Oncology (AZ); Practitioner - Medical Oncology (IA); Practitioner - Hematology/Oncology (IL); Practitioner - Medical Oncology (NV); Practitioner - Hematology/Oncology (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 346 |
|---|---|
| Services billed | 539 across 14 procedure codes |
| Paid by Medicare | $36,491 |
Part D prescriptions in 2024
| Prescriptions (claims) | 584 · 757 30-day fills |
|---|---|
| Patients | 182 |
| Total drug cost | $1,034,964 |
| Generic share | 84% of claims |
Education and affiliations
| Graduation year | 1990 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Internal Medicine |
Medical groups
- The Iowa Clinic PCAnkeny, IA · 310 clinicians
- Hrmc, LLCLake Havasu City, AZ · 34 clinicians
Hospital affiliations
- Havasu Regional Medical CenterLake Havasu City, AZ
- Kingman Regional Medical CenterKingman, AZ
- Kootenai HealthCoeur D'Alene, ID
- Trinity Rock IslandRock Island, IL
Industry payments (Open Payments)
- 2025$86.36 · 4 payments from 3 companies
- 2024$147.27 · 4 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Exelixis Inc. | $43.40 | 2 |
| Rigel Pharmaceuticals, Inc. | $28.74 | 1 |
| Astrazeneca Pharmaceuticals LP | $14.22 | 1 |
What the 2025 payments were for
- Food and Beverage$86.36 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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