Andrew Knott, MD
Vascular Surgery · Huntsville, ALNPI 1861415986
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $52,675 of the $75,845 with a category attached, or 69.5%. 38 manufacturers reported payments, led by Imperative Care, Inc at 46.1% of the total. 2025 is the largest year on record at $40,093, 6.6 times the $6,048 reported in 2019. Among vascular surgery clinicians in AL with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 419 payments — averaging $181.01 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Imperative Care, Inc$35K
- Endologix LLC$17K
- Penumbra, Inc.$7K
- Boston Scientific$5K
- Silk Road Medical, Inc.$3K
- Medtronic$2K
- plus $7K from 32 others
Across 15 payments — averaging $2066.67 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Silk Road Medical, Inc.$28K
- Boston Scientific$3K
What the payments were for
- Consulting fees$52,67569%
- Travel & lodging$7,1119%
- Food & beverage$16,05921%
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 | 25 | $34,950 |
| Endologix LLC | 55 | $17,147 |
| Penumbra, Inc. | 37 | $6,792 |
| Boston Scientific | 17 | $5,192 |
| Silk Road Medical, Inc. | 16 | $3,149 |
| Medtronic(2 entities) | 83 | $2,060 |
| W. L. Gore & Associates, Inc. | 18 | $1,659 |
| Cook Medical LLC | 46 | $778 |
| Inari Medical, Inc. | 24 | $727 |
| Shockwave Medical, Inc | 3 | $638 |
| Musculoskeletal Transplant Foundation Inc. | 1 | $444 |
| Bard Peripheral Vascular, Inc. | 16 | $404 |
| Kerecis Limited | 7 | $356 |
| Lemaitre Vascular, Inc. | 12 | $227 |
| Stryker | 5 | $168 |
| Johnson & Johnson(2 entities) | 10 | $162 |
| Venclose Inc. | 1 | $154 |
| Smith+Nephew | 7 | $117 |
| Mimedx Group, Inc. | 4 | $91 |
| Avita Medical Americas, LLC | 1 | $75 |
| Organogenesis Inc. | 4 | $72 |
| Terumo Medical Corporation | 3 | $66 |
| Triad Life Sciences Inc. | 1 | $65 |
| Artivion, Inc. | 4 | $63 |
| Abbott | 2 | $42 |
| Tactile Systems Technology Inc | 3 | $38 |
| Baxter Healthcare | 2 | $30 |
| Medela LLC | 2 | $25 |
| Inspiremd Ltd | 1 | $20 |
| Integra Lifesciences Corporation | 1 | $19 |
| Pfizer | 1 | $17 |
| Convatec Inc. | 1 | $16 |
| Polynovo North America LLC | 1 | $16 |
| LSI Solutions Inc | 1 | $14 |
| Solventum Corporation | 1 | $13 |
| Sanara Medtech Inc. | 1 | $13 |
| Cook Incorporated | 1 | $13 |
| EKOS Corporation | 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.
- ZOOM 88-T LARGE DISTAL PLATFORM$34,000
- AFX2 Bifurcated Endograft System$8,412
- Indigo System$4,388
- GENERAL VASCULAR INTERVENTION$4,345
- AFX$4,008
- Alto Abdominal Stent Graft System$3,690
- ENROUTE Transcarotid Neuroprotection System$3,134
- ENHANCE Transcarotid Peripheral Access Kit$2,502
- ENROUTE Transcarotid Stent$1,809
- Indigo$1,643
- ENROUTE .014 Guidewire$1,350
- ENROUTE Transcarotid Stent System$1,152
- ENROUTE 0.014 Guidewire$1,152
- GORE EXCLUDER Thoracoabdominal Branch Endoprosthesis$985
- Torus Stent Graft System$532
- ENDOCROSS Device$532
- Shockwave IVL System with the Shockwave C2 Coronary IVL Catheter$397
- SPECTRA WAVEWRITER$360
- GORE EXCLUDER AAA Endoprosthesis$330
- Kerecis Omega3 Marigen$325
How this compares
$75,845 in reported general payments places this provider in the 95th percentile of 61 vascular surgery providers in Alabama.
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 | 160 | $123,452 |
| XareltoRivaroxaban | 25 | $26,400 |
| BrilintaTicagrelor | 41 | $21,315 |
| ClopidogrelClopidogrel Bisulfate | 199 | $2,965 |
| Cilostazol | 34 | $1,061 |
| Enoxaparin Sodium | 16 | $1,057 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 118 | $592 |
| Doxycycline Monohydrate | 12 | $406 |
| Triamcinolone Acetonide | 17 | $262 |
| Gabapentin | 20 | $187 |
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 17 | $73 |
| Carisoprodol | 12 | $45 |
| Tramadol Hcl | 21 | $35 |
| Oxycodone Hcl | 12 | $29 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| PfizerEliquis | $17 | $123,452160 claims |
| Johnson & JohnsonXarelto | $162 | $26,40025 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 95th percentile of 61 vascular surgery providers in Alabama.
Other vascular surgery in Huntsville
- Marco CioppiHuntsville$21K
- Mell WelbornHuntsville$14K
- Benjamin ShepherdHuntsville$13K
- Ronny JohnsonHuntsville$9K
- Tracy LoweryHuntsville$209
- Rick RobertsHuntsville$131
- Albert PacificoBirmingham$5.1M
- Brian SellersMontgomery$71K
- Peter PonsFlorence$54K
- Benjamin PearceBirmingham$37K
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.