David Alan Tonnies, M.D.
NPI 1083618946ActiveIndividual· Orthopaedic Surgery· Hermitage, PA
Orthopaedic Surgery (M.D.) in Hermitage, Pennsylvania, trained at Ohio State University College of Medicine (class of 1992). 201 Medicare patients in 2024, $65,154 paid; nearly all of their 448 Part D prescriptions were generic (96%). Zimmer Biomet Holdings, Inc. was the largest of 2 companies reporting payments in 2025, $122.81 in all, mostly food and beverage.
Overview
| NPI | 1083618946 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 9, 2005 |
| Last updated in NPPES | Dec 23, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | MD054137L | PA |
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 - Orthopedic Surgery (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 201 |
|---|---|
| Services billed | 3,098 across 67 procedure codes |
| Paid by Medicare | $65,154 |
Part D prescriptions in 2024
| Prescriptions (claims) | 448 · 476 30-day fills |
|---|---|
| Patients | 182 |
| Total drug cost | $8,201 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | Ohio State University College of Medicine |
|---|---|
| Graduation year | 1992 |
| Medicare specialty | Orthopedic Surgery |
Medical group
- Hermitage Orthopedics and Sports Medicine PCHermitage, PA · 4 clinicians
Hospital affiliations
- Edgewood Surgical HospitalTransfer, PA
- Grove City Medical CenterGrove City, PA
- Sharon Regional Medical CenterSharon, PA
- Upmc HorizonGreenville, PA
- Upmc JamesonNew Castle, PA
Industry payments (Open Payments)
- 2025$122.81 · 3 payments from 2 companies
- 2024$78.46 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Zimmer Biomet Holdings, Inc. | $89.16 | 2 |
| Bioventus LLC | $33.65 | 1 |
What the 2025 payments were for
- Food and Beverage$122.81 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 18 orthopedic surgeons in Hermitage · All orthopedic surgeons in Pennsylvania