Stephen A. Williams, MD
NPI 1437370947ActiveIndividual· Internal Medicine, Hematology & Oncology· Roseburg, OR
Internal Medicine, Hematology & Oncology (MD) with Steelhead Specialty Group PC, practicing in Roseburg, Oregon. In 2024 Medicare paid $3,440,919 for 306 patients, and Part D covered 1,454 of their prescriptions, 81% of them generic. Onmark, Inc. was the largest of 6 companies reporting payments in 2025, $3,879 in all, mostly travel and lodging. Lists Bay Area Hospital and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1437370947 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 1, 2007 |
| Last updated in NPPES | Feb 20, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | MD27562 | OR |
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 (OR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 306 |
|---|---|
| Services billed | 154,928 across 97 procedure codes |
| Paid by Medicare | $3,440,919 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,454 · 2,420 30-day fills |
|---|---|
| Patients | 294 |
| Total drug cost | $4,301,157 |
| Generic share | 81% of claims |
Education and affiliations
| Graduation year | 2001 |
|---|---|
| Medicare specialty | Hematology/Oncology |
Medical group
- Steelhead Specialty Group PCRoseburg, OR · 4 clinicians
Hospital affiliations
- Bay Area HospitalCoos Bay, OR
- Mercy Medical CenterRoseburg, OR
- Sacred Heart Medical Center - RiverbendSpringfield, OR
- Southern Coos Hospital & Health CenterBandon, OR
Industry payments (Open Payments)
- 2025$3,879 · 17 payments from 6 companies
- 2024$69.88 · 4 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Onmark, Inc. | $3,744 | 11 |
| Aveo Pharmaceuticals, Inc. | $45.23 | 2 |
| Amgen Inc. | $32.72 | 1 |
| Emd Serono, Inc. | $20.00 | 1 |
| E.R. Squibb & Sons, L.L.C. | $18.80 | 1 |
What the 2025 payments were for
- Travel and Lodging$2,286 · 3 payments
- Food and Beverage$1,520 · 11 payments
- Education$52.72 · 2 payments
- Gift$19.74 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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