William Benjamin Workman, D.O.
NPI 1407110257ActiveIndividual· Internal Medicine· Battle Creek, MI
Internal Medicine (D.O.) in Battle Creek, Michigan, trained at Michigan State University College of Osteopathic Medicine (class of 2012). Their prescriptions cost Medicare Part D more than their services did: $1,737,869 for 14,682 claims, against $77,125 paid for services in 2024. Merck Sharp & Dohme LLC was the largest of 2 companies reporting payments in 2025, $39.95 in all, mostly food and beverage.
Overview
| NPI | 1407110257 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Jun 26, 2012 |
| Last updated in NPPES | Nov 27, 2023 |
| Certified by provider | Oct 20, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 5101019940 | MI |
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 - Internal Medicine (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 366 |
|---|---|
| Services billed | 1,246 across 37 procedure codes |
| Paid by Medicare | $77,125 |
Part D prescriptions in 2024
| Prescriptions (claims) | 14,682 · 33,408 30-day fills |
|---|---|
| Patients | 1,000 |
| Total drug cost | $1,737,869 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | Michigan State University College of Osteopathic Medicine |
|---|---|
| Graduation year | 2012 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Bronson Methodist HospitalKalamazoo, MI · 729 clinicians
- Bronson Battle Creek HospitalBattle Creek, MI · 193 clinicians
Hospital affiliations
- Bronson Battle Creek HospitalBattle Creek, MI
- Bronson Lakeview HospitalPaw Paw, MI
- Bronson Methodist HospitalKalamazoo, MI
- Oaklawn HospitalMarshall, MI
Other facilities
- Bronson at Home Healthcare ServicesHome health agency · Battle Creek, MI
- Centerwell Home HealthHome health agency · Portage, MI
- Elara CaringHome health agency · Jackson, MI
- Centrica Care NavigatorsHospice · Kalamazoo, MI
Industry payments (Open Payments)
- 2025$39.95 · 2 payments from 2 companies
- 2024$475.33 · 32 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $22.08 | 1 |
| Abbott Laboratories | $17.87 | 1 |
What the 2025 payments were for
- Food and Beverage$39.95 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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