Derrick Williamson, DO
NPI 1215922059ActiveIndividual· Family Medicine· Southfield, MI
Family Medicine (DO) in Southfield, Michigan, trained at Michigan State University College of Osteopathic Medicine (class of 1985). Their prescriptions cost Medicare Part D more than their services did: $74,030 for 372 claims, against $11,841 paid for services in 2024. Abbvie Inc. was the largest of 3 companies reporting payments in 2025, $395.75 in all, mostly food and beverage.
Overview
| NPI | 1215922059 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Sep 19, 2005 |
| Last updated in NPPES | Nov 2, 2022 |
| Certified by provider | Nov 2, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 5101009333 | MI |
| General Practice | 208D00000X | DW009333 | MI |
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 - Family Practice (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 13 |
|---|---|
| Services billed | 166 across 13 procedure codes |
| Paid by Medicare | $11,841 |
Part D prescriptions in 2024
| Prescriptions (claims) | 372 · 962 30-day fills |
|---|---|
| Patients | 30 |
| Total drug cost | $74,030 |
| Generic share | 81% of claims |
Education and affiliations
| Medical school | Michigan State University College of Osteopathic Medicine |
|---|---|
| Graduation year | 1985 |
| Medicare specialty | Family Practice |
Industry payments (Open Payments)
- 2025$395.75 · 4 payments from 3 companies
- 2024$2,851 · 20 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $149.66 | 2 |
| Novo Nordisk Inc | $124.74 | 1 |
| Astrazeneca Pharmaceuticals LP | $121.35 | 1 |
What the 2025 payments were for
- Food and Beverage$395.75 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 178 family medicine physicians in Southfield · All family medicine physicians in Michigan