John Michael McMahon, DDS
NPI 1811279235ActiveIndividual· Dentist, General Practice· Jenison, MI
Dentist, General Practice (DDS) in Jenison, Michigan, licensed in MI, with an NPI issued in September 2011. Part D covered 38 prescriptions written in 2024, 100% of them generic. Dentsply LLC was the largest of 3 companies reporting payments in 2025, $1,269 in all, mostly speaking and faculty fees.
Overview
| NPI | 1811279235 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DDS |
| Sole proprietor | No |
| NPI issued | Sep 12, 2011 |
| Last updated in NPPES | Sep 12, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dentist, General Practice Primary | 1223G0001X | 2901020514 | 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) | Not in the public enrollment file of Oct 1, 2026 |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 38 · 38 30-day fills |
|---|---|
| Patients | 34 |
| Total drug cost | $156.35 |
| Generic share | 100% of claims |
Industry payments (Open Payments)
- 2025$1,269 · 3 payments from 3 companies
- 2024$1,200 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Dentsply LLC | $1,200 | 1 |
| Dentsply Sirona Inc | $51.07 | 1 |
| Envista Holdings Corporation | $18.32 | 1 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$1,200 · 1 payment
- Food and Beverage$69.39 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 23 general dentists in Jenison · All general dentists in Michigan