Andrew Thomas Assenmacher, M.D.
NPI 1578791240ActiveIndividual· Orthopaedic Surgery, Sports Medicine· Monroe, MI
Orthopaedic Surgery, Sports Medicine (M.D.) in Monroe, Michigan, trained at University of Toledo College of Medicine (class of 2009). 323 Medicare patients in 2024, $122,270 paid; nearly all of their 170 Part D prescriptions were generic (98%). Smith+nephew, Inc. was the largest of 7 companies reporting payments in 2025, $808.91 in all, mostly food and beverage.
Overview
| NPI | 1578791240 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 1, 2009 |
| Last updated in NPPES | Jun 9, 2026 |
| Certified by provider | Jun 9, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery, Sports Medicine Primary | 207XX0005X | 4301095012 | MI |
| Orthopaedic Surgery | 207X00000X | 4301095012 | MI |
| Orthopaedic Surgery | 207X00000X | 35.129521 | OH |
| Orthopaedic Surgery, Sports Medicine | 207XX0005X | 35.129521 | OH |
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) | Enrolled Practitioner - Orthopedic Surgery (MI); Practitioner - Orthopedic Surgery (OH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 323 |
|---|---|
| Services billed | 1,546 across 103 procedure codes |
| Paid by Medicare | $122,270 |
Part D prescriptions in 2024
| Prescriptions (claims) | 170 · 186 30-day fills |
|---|---|
| Patients | 118 |
| Total drug cost | $2,084 |
| Generic share | 98% of claims |
Education and affiliations
| Medical school | University of Toledo College of Medicine |
|---|---|
| Graduation year | 2009 |
| Medicare specialty | Orthopedic Surgery |
Medical groups
- Promedica Central PhysiciansToledo, OH · 785 clinicians
- Promedica Monroe PhysiciansMonroe, MI · 65 clinicians
Hospital affiliations
- Promedica Charles and Virginia Hickman HospitalAdrian, MI
- Promedica Monroe Regional HospitalMonroe, MI
- Promedica Toledo HospitalToledo, OH
Other facilities
- Elara CaringHome health agency · Jackson, MI
- Ohioans Home Healthcare, IncHome health agency · Perrysburg, OH
Industry payments (Open Payments)
- 2025$808.91 · 13 payments from 7 companies
- 2024$568.20 · 7 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Smith+nephew, Inc. | $333.24 | 5 |
| Arthrex, Inc. | $219.28 | 2 |
| Bioventus LLC | $130.26 | 2 |
| Nexus Medical Technologies LLC | $52.51 | 1 |
| Zimmer Biomet Holdings, Inc. | $31.48 | 1 |
What the 2025 payments were for
- Food and Beverage$808.91 · 13 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records