Christopher Pollock, MD
Vascular Surgery · Knoxville, TNNPI 1306953260
Payments from drug & device makers
What this record shows
The money is spread across several categories — other (55.3%), food and beverage and travel and lodging — rather than concentrated in one kind of arrangement. 40 manufacturers reported payments, led by Convatec Inc. at 56.0% of the total. 2025 is the largest year on record at $19,659, more than ten times the $1,903 reported in 2019.
Across 318 payments — averaging $98.88 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Convatec Inc.$18K
- Medtronic$4K
- Silk Road Medical, Inc.$2K
- W. L. Gore & Associates, Inc.$2K
- Terumo Medical Corporation$1K
- Inari Medical, Inc.$539
- plus $4K from 34 others
What the payments were for
- Travel & lodging$1,7376%
- Food & beverage$12,16939%
- Education$1370%
- Other$17,40055%
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 |
|---|---|---|
| Convatec Inc. | 6 | $17,601 |
| Medtronic(2 entities) | 133 | $3,842 |
| Silk Road Medical, Inc. | 25 | $2,363 |
| W. L. Gore & Associates, Inc. | 35 | $1,734 |
| Terumo Medical Corporation | 9 | $1,162 |
| Inari Medical, Inc. | 6 | $539 |
| Smith+Nephew | 7 | $452 |
| Boston Scientific | 7 | $420 |
| Philips North America LLC | 20 | $396 |
| Penumbra, Inc. | 4 | $311 |
| Endologix LLC | 2 | $306 |
| Nevro Corp. | 5 | $279 |
| Organogenesis Inc. | 5 | $268 |
| Shockwave Medical, Inc | 6 | $266 |
| Johnson & Johnson | 8 | $228 |
| Cvrx, Inc. | 2 | $205 |
| Bolton Medical Inc | 5 | $190 |
| Angiodynamics, Inc. | 1 | $155 |
| Bard Peripheral Vascular, Inc. | 6 | $140 |
| Tactile Systems Technology Inc | 4 | $114 |
| Medline Industries LP | 1 | $62 |
| Cardiva Medical, Inc. | 2 | $49 |
| Novo Nordisk | 1 | $40 |
| Globus Medical | 1 | $28 |
| Curonix LLC | 1 | $26 |
| Cordis US CORP. | 1 | $25 |
| Abbott | 1 | $24 |
| Lemaitre Vascular, Inc. | 1 | $22 |
| Cagent Vascular Inc | 1 | $22 |
| Cook Medical LLC | 1 | $21 |
| Sanara Medtech Inc. | 1 | $19 |
| Acera Surgical, Inc. | 1 | $18 |
| Argon Medical Devices, Inc. | 1 | $18 |
| Reflow Medical Inc | 1 | $17 |
| Cardiovascular Systems Inc. | 2 | $16 |
| Cashflow Solutions, LLC | 1 | $16 |
| Bioventus LLC | 1 | $15 |
| Elutia, Inc. | 1 | $13 |
| Cardinal Health 200 LLC | 1 | $13 |
| Biocompatibles, Inc. | 1 | $12 |
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.
- InnovaMatrix AC$17,524
- ENROUTE Transcarotid Neuroprotection System$1,679
- HawkOne$1,060
- Azur CX Detachable$1,008
- ENHANCE Transcarotid Peripheral Access Kit$979
- ENROUTE Transcarotid Stent System$876
- ENROUTE 0.014 Guidewire$876
- ENROUTE Transcarotid Stent$683
- FLOWTRIEVER CATHETER, S$426
- CT THROMBECTOMY SYSTEM KIT$426
- ENDURANT IIS$333
- EXCLUDER Conformable AAA Endoprosthesis with Active Control$277
- STRAVIX PL$276
- GRAFIX PL$276
- GORE EXCLUDER Iliac Branch Endoprosthesis$185
- ENDOCROSS Device$173
- Torus Stent Graft System$173
- Auryon Laser System 100-120 Vac$155
- EXCLUDER AAA Endoprosthesis$153
- STRAVIX MESH$149
How this compares
$31,444 in reported general payments places this provider in the 85th percentile of 117 vascular surgery 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 |
|---|---|---|
| EliquisApixaban | 12 | $11,367 |
| ClopidogrelClopidogrel Bisulfate | 109 | $818 |
| Lidocaine-PrilocaineLidocaine/Prilocaine | 42 | $590 |
| Naproxen | 183 | $382 |
| Cephalexin | 200 | $240 |
| Alprazolam | 156 | $124 |
Paid to pharmacies, not to this prescriber.
Other vascular surgery in Knoxville
- Scott StevensKnoxville$53K
- Christopher CallicuttKnoxville$14K
- Afshin SkibbaKnoxville$13K
- Michael McNallyKnoxville$9K
- Oscar GrandasKnoxville$9K
- Stephen TonksKnoxville$8K
- Andrew KropilakKnoxville$6K
- Daniel ClairNashville$993K
- Anton Dias PereraGermantown$832K
- Bryan FisherHendersonville$417K
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.