Michael J. Mahon, D.O.
NPI 1013904549ActiveIndividual· Dermatology· Farmington Hills, MI
Dermatology (D.O.) in Farmington Hills, Michigan, trained at At Still University of Health Sciences, College of Osteo Med, Kirksville (class of 1969). Their prescriptions cost Medicare Part D more than their services did: $882,955 for 921 claims, against $236,358 paid for services in 2024. Regeneron Healthcare Solutions, Inc. was the largest of 14 companies reporting payments in 2025, $742.64 in all, mostly food and beverage.
Overview
| NPI | 1013904549 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Sep 30, 2005 |
| Last updated in NPPES | Apr 30, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology Primary | 207N00000X | 5101006141 | 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 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Dermatology (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 789 |
|---|---|
| Services billed | 6,335 across 81 procedure codes |
| Paid by Medicare | $236,358 |
Part D prescriptions in 2024
| Prescriptions (claims) | 921 · 1,040 30-day fills |
|---|---|
| Patients | 370 |
| Total drug cost | $882,955 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | At Still University of Health Sciences, College of Osteo Med, Kirksville |
|---|---|
| Graduation year | 1969 |
| Medicare specialty | Dermatology |
Hospital affiliation
- Beaumont Hospital - Farmington HillsFarmington Hills, MI
Industry payments (Open Payments)
- 2025$742.64 · 34 payments from 14 companies
- 2024$879.26 · 43 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Regeneron Healthcare Solutions, Inc. | $205.95 | 7 |
| Ucb, Inc. | $95.79 | 4 |
| Novartis Pharmaceuticals Corporation | $89.62 | 4 |
| Leo Pharma Inc. | $79.65 | 5 |
| Abbvie Inc. | $69.59 | 3 |
What the 2025 payments were for
- Food and Beverage$742.64 · 34 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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