William R. Houskamp, MD
NPI 1265498398ActiveIndividual· Surgery· Holland, MI
Surgery (MD) in Holland, Michigan, trained at Loyola University of Chicago, Stritch School of Medicine (class of 1995). In 2024 Medicare paid $29,852 for 98 patients, and Part D covered 136 of their prescriptions, 76% of them generic. Janssen Biotech, Inc. was the largest of 8 companies reporting payments in 2025, $217.45 in all, mostly food and beverage.
Overview
| NPI | 1265498398 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 26, 2006 |
| Last updated in NPPES | Jul 29, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | 4301066333 | 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 - General Surgery (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 98 |
|---|---|
| Services billed | 156 across 42 procedure codes |
| Paid by Medicare | $29,852 |
Part D prescriptions in 2024
| Prescriptions (claims) | 136 · 160 30-day fills |
|---|---|
| Patients | 106 |
| Total drug cost | $5,090 |
| Generic share | 76% of claims |
Education and affiliations
| Medical school | Loyola University of Chicago, Stritch School of Medicine |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | General Surgery |
Medical group
- Holland Community HospitalGrand Haven, MI · 178 clinicians
Hospital affiliation
- Holland HospitalHolland, MI
Industry payments (Open Payments)
- 2025$217.45 · 9 payments from 8 companies
- 2024$209.52 · 5 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $58.03 | 2 |
| Regeneron Healthcare Solutions, Inc. | $26.91 | 1 |
| Lilly USA, LLC | $24.74 | 1 |
| Takeda Pharmaceuticals U.S.A., Inc. | $23.99 | 1 |
| Ethicon US, LLC | $23.93 | 1 |
What the 2025 payments were for
- Food and Beverage$217.45 · 9 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 18 general surgeons in Holland · All general surgeons in Michigan