Harry Hixson, MD
Vascular & Interventional Radiology · Knoxville, TNNPI 1679701791
Payments from drug & device makers
What this record shows
The money is spread across several categories — consulting fees (43.4%), travel and lodging and food and beverage — rather than concentrated in one kind of arrangement. 10 manufacturers reported payments, led by Imperative Care, Inc at 49.9% of the total. Reporting peaked in 2022 at $7,597 and has fallen 79.9% since, to $1,527 in 2024.
Across 48 payments — averaging $256.65 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Imperative Care, Inc$6K
- Stryker$4K
- Microvention, Inc.$1K
- Penumbra, Inc.$513
- Johnson & Johnson$447
- Medtronic$186
- plus $311 from 4 others
What the payments were for
- Consulting fees$5,34843%
- Travel & lodging$4,25535%
- Food & beverage$2,71622%
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| Imperative Care, Inc | 10 | $6,151 |
| Stryker | 13 | $3,565 |
| Microvention, Inc. | 5 | $1,147 |
| Penumbra, Inc. | 5 | $513 |
| Johnson & Johnson | 6 | $447 |
| Medtronic(2 entities) | 4 | $186 |
| Route 92 Medical, Inc. | 2 | $156 |
| Balt USA, LLC | 1 | $86 |
| Scientia Vascular | 1 | $46 |
| Portola Pharmaceuticals, LLC | 1 | $23 |
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
- ZOOM 88-T LARGE DISTAL PLATFORM$5,864
- SURPASS EVOLVE$1,536
- WEB$1,080
- Penumbra System$390
- ZOOM REPERFUSION CATHETER$146
- 8F Base Camp Sheath System$132
- TracStarLargeDistalPlatform$123
- Zoom88LargeDistalPlatform$123
- Zoom88_TLargeDitalPlatform$123
- ZoomReperfusionCatheter$123
- EVOLVE$114
- TRUFILL$104
- Pipeline$102
- Spectra$101
- ENVOY$101
How this compares
$12,319 in reported general payments places this provider in the 75th percentile of 76 vascular & interventional radiology providers in Tennessee.
See all vascular & interventional radiology providers in Tennessee →
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| BrilintaTicagrelor | 20 | $8,544 |
| ClopidogrelClopidogrel Bisulfate | 29 | $109 |
Paid to pharmacies, not to this prescriber.
Other vascular & interventional radiology in Knoxville
- Britton WoodwardKnoxville$1.6M
- Andrew FerrellKnoxville$14K
- Jacob DepoloKnoxville$3K
- Scott WegrynKnoxville$2K
- Aron CharyGermantown$219K
- Samdeep MouliNashville$217K
- Reed OmaryNashville$66K
- Gregory BrunoJackson$59K
- David ZielskeNashville$46K
- Phillip ZeniMemphis$44K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.