Matthew Jeffrey Klassen, DO
NPI 1144964438ActiveIndividual· Student in an Organized Health Care Education/Training Program· Wyoming, MI
Student in an Organized Health Care Education/Training Program (DO) in Wyoming, Michigan, with an NPI issued in April 2022. Part D covered 179 prescriptions written in 2024, 97% of them generic. Zak Ortho reported $19.85 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1144964438 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Apr 23, 2022 |
| Last updated in NPPES | Apr 23, 2022 |
| Certified by provider | Apr 23, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Student in an Organized Health Care Education/Training Program Primary | 390200000X | — | — |
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) | Not in the public enrollment file of Oct 1, 2026 |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 179 · 191 30-day fills |
|---|---|
| Patients | 93 |
| Total drug cost | $3,142 |
| Generic share | 97% of claims |
Industry payments (Open Payments)
- 2025$19.85 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Zak Ortho | $19.85 | 1 |
What the 2025 payments were for
- Food and Beverage$19.85 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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