William A. Fabricius, M.D.
NPI 1568698645ActiveIndividual· Internal Medicine, Hematology & Oncology· Greenville, MI
Internal Medicine, Hematology & Oncology (M.D.) with Center for Physical Rehabilitation and Therapy LP and 2 other groups, practicing in Greenville, Michigan. Their prescriptions cost Medicare Part D more than their services did: $2,499,762 for 1,445 claims, against $1,584,943 paid for services in 2024. Astellas Pharma US Inc was the largest of 34 companies reporting payments in 2025, $1,771 in all, mostly food and beverage. Lists Corewell Health Big Rapids Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1568698645 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 3, 2009 |
| Last updated in NPPES | Jul 6, 2021 |
| Certified by provider | Jul 6, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | MD20974 | ME |
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 - Hematology/Oncology (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 292 |
|---|---|
| Services billed | 94,636 across 163 procedure codes |
| Paid by Medicare | $1,584,943 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,445 · 1,934 30-day fills |
|---|---|
| Patients | 230 |
| Total drug cost | $2,499,762 |
| Generic share | 81% of claims |
Education and affiliations
| Graduation year | 2002 |
|---|---|
| Medicare specialty | Hematology/Oncology |
Medical groups
- Center for Physical Rehabilitation and Therapy LPGrand Rapids, MI · 369 clinicians
- Center for Physical Rehabilitation IncGrand Rapids, MI · 357 clinicians
- Cancer and Hematology Centers of Western Mi, P.C.Holland, MI · 110 clinicians
Hospital affiliations
- Corewell Health Big Rapids HospitalBig Rapids, MI
- Corewell Health Reed City HospitalReed City, MI
- Mercy Health Saint Mary'sGrand Rapids, MI
- Spectrum HealthGrand Rapids, MI
- Spectrum Health United HospitalGreenville, MI
Industry payments (Open Payments)
- 2025$1,771 · 65 payments from 34 companies
- 2024$1,272 · 57 payments from 28 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astellas Pharma US Inc | $253.64 | 4 |
| Merck Sharp & Dohme LLC | $136.20 | 5 |
| Astrazeneca Pharmaceuticals LP | $116.39 | 4 |
| Genentech USA, Inc. | $106.69 | 3 |
| Daiichi Sankyo Inc. | $94.66 | 4 |
What the 2025 payments were for
- Food and Beverage$1,472 · 60 payments
- Education$298.99 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records