Gregory Mark Mathien, M.D.
NPI 1730156076ActiveIndividual· Orthopaedic Surgery, Sports Medicine· Knoxville, TN
Orthopaedic Surgery, Sports Medicine (M.D.) in Knoxville, Tennessee, trained at State University of Ny Upstate Medical University (class of 1986). 235 Medicare patients in 2024, $84,465 paid; nearly all of their 370 Part D prescriptions were generic (96%). Ethicon US, LLC reported $58.28 in payments in 2024, mostly food and beverage.
Overview
| NPI | 1730156076 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 7, 2006 |
| Last updated in NPPES | Jan 15, 2026 |
| Certified by provider | Jan 15, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery, Sports Medicine Primary | 207XX0005X | 21414 | TN |
| Orthopaedic Surgery | 207X00000X | MD21414 | TN |
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 - Sports Medicine (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 235 |
|---|---|
| Services billed | 1,317 across 33 procedure codes |
| Paid by Medicare | $84,465 |
Part D prescriptions in 2024
| Prescriptions (claims) | 370 · 386 30-day fills |
|---|---|
| Patients | 143 |
| Total drug cost | $7,240 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | State University of Ny Upstate Medical University |
|---|---|
| Graduation year | 1986 |
| Medicare specialty | Sports Medicine |
| Secondary specialties | Orthopedic Surgery |
Medical group
- Orthotennessee PCKnoxville, TN · 153 clinicians
Hospital affiliations
- Parkwest Medical CenterKnoxville, TN
- Physicians Regional Medical CenterPowell, TN
Industry payments (Open Payments)
- 2024$58.28 · 1 payment from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Ethicon US, LLC | $58.28 | 1 |
What the 2024 payments were for
- Food and Beverage$58.28 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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