Joseph Kenneth Postma, M.D.
NPI 1962790170ActiveIndividual· Internal Medicine· Zeeland, MI
Internal Medicine (M.D.) with Spectrum Health Primary Care Partners, practicing in Zeeland, Michigan. Their prescriptions cost Medicare Part D more than their services did: $145,617 for 340 claims, against $17,536 paid for services in 2024. Madrigal Pharmaceuticals was the largest of 5 companies reporting payments in 2025, $96.90 in all, mostly food and beverage. Lists Corewell Health Zeeland Hospital as a hospital affiliation.
Overview
| NPI | 1962790170 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 21, 2011 |
| Last updated in NPPES | Mar 3, 2025 |
| Certified by provider | Mar 3, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 4301099039 | 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 - Hospitalist (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 68 |
|---|---|
| Services billed | 213 across 15 procedure codes |
| Paid by Medicare | $17,536 |
Part D prescriptions in 2024
| Prescriptions (claims) | 340 · 405 30-day fills |
|---|---|
| Patients | 106 |
| Total drug cost | $145,617 |
| Generic share | 62% of claims |
Education and affiliations
| Graduation year | 2011 |
|---|---|
| Medicare specialty | Hospitalist |
| Secondary specialties | Internal Medicine |
Medical group
- Spectrum Health Primary Care PartnersGrand Rapids, MI · 2,294 clinicians
Hospital affiliation
- Corewell Health Zeeland HospitalZeeland, MI
Industry payments (Open Payments)
- 2025$96.90 · 5 payments from 5 companies
- 2024$831.61 · 39 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Madrigal Pharmaceuticals | $22.99 | 1 |
| Dexcom, Inc. | $22.31 | 1 |
| Novo Nordisk Inc | $18.90 | 1 |
| Lilly USA, LLC | $17.07 | 1 |
| Neurocrine Biosciences, Inc. | $15.63 | 1 |
What the 2025 payments were for
- Food and Beverage$96.90 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine providers in Zeeland
- 1447871454
- 1790982528
- 1013371095
- 1114506748
- 1013371202
- 1013578145
- 1902466071
- 1902338619
- 1780688051
- 1780066795
- 1851316236
- 1861440299