Stephen A. Tonks, MD
NPI 1689937989ActiveIndividual· Surgery, Vascular Surgery· Knoxville, TN
Surgery, Vascular Surgery (MD) in Knoxville, Tennessee, trained at University of Alabama School of Medicine (class of 2012). 511 Medicare patients in 2024, $527,707 paid; nearly all of their 455 Part D prescriptions were generic (94%). Inari Medical, Inc. was the largest of 10 companies reporting payments in 2025, $1,313 in all, mostly travel and lodging.
Overview
| NPI | 1689937989 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 21, 2012 |
| Last updated in NPPES | Aug 21, 2020 |
| Certified by provider | Aug 21, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery, Vascular Surgery Primary | 2086S0129X | 56350 | 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 - Vascular Surgery (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 511 |
|---|---|
| Services billed | 3,741 across 94 procedure codes |
| Paid by Medicare | $527,707 |
Part D prescriptions in 2024
| Prescriptions (claims) | 455 · 780 30-day fills |
|---|---|
| Patients | 185 |
| Total drug cost | $22,153 |
| Generic share | 94% of claims |
Education and affiliations
| Medical school | University of Alabama School of Medicine |
|---|---|
| Graduation year | 2012 |
| Medicare specialty | Vascular Surgery |
Medical group
- Premier Surgical Associates PLLCKnoxville, TN · 59 clinicians
Hospital affiliations
- Fort Loudoun Medical CenterLenoir City, TN
- Fort Sanders Regional Medical CenterKnoxville, TN
- Parkwest Medical CenterKnoxville, TN
- Physicians Regional Medical CenterPowell, TN
Industry payments (Open Payments)
- 2025$1,313 · 27 payments from 10 companies
- 2024$2,691 · 24 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Inari Medical, Inc. | $707.91 | 2 |
| Philips North America LLC | $394.56 | 16 |
| Boston Scientific Corporation | $53.27 | 2 |
| Angiodynamics, Inc. | $32.23 | 1 |
| Organogenesis Inc. | $25.22 | 1 |
What the 2025 payments were for
- Travel and Lodging$691.37 · 1 payment
- Food and Beverage$622.12 · 26 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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