Christopher Kwolek, MD
Vascular Surgery · Boston, MANPI 1689665309
Payments from drug & device makers
What this record shows
The money is spread across several categories — consulting fees (50.7%), food and beverage and speaking fees — rather than concentrated in one kind of arrangement. 37 manufacturers reported payments, led by Endologix LLC at 43.0% of the total. Reporting peaked in 2021 at $12,215 and has fallen 80.4% since, to $2,400 in 2025. Among vascular surgery clinicians in MA with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 232 payments — averaging $238.67 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Endologix LLC$24K
- Philips North America LLC$15K
- Silk Road Medical, Inc.$7K
- Cordis US CORP.$3K
- Medtronic$1K
- Angiodynamics, Inc.$756
- plus $5K from 31 others
Across 70 payments — averaging $5924.55 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.
- Veryan Medical Incorporated$294K
- Endologix LLC$48K
- Silk Road Medical, Inc.$37K
- W. L. Gore & Associates, Inc.$36K
What the payments were for
- Consulting fees$28,05051%
- Speaking & faculty fees$7,80014%
- Travel & lodging$5,0539%
- Food & beverage$13,73525%
- Other$7331%
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 |
|---|---|---|
| Endologix LLC | 46 | $23,807 |
| Philips North America LLC | 32 | $14,709 |
| Silk Road Medical, Inc. | 21 | $6,849 |
| Cordis US CORP. | 9 | $2,600 |
| Medtronic | 19 | $1,486 |
| Angiodynamics, Inc. | 2 | $756 |
| Veryan Medical Incorporated | 10 | $729 |
| Boston Scientific | 8 | $522 |
| Pfizer | 18 | $510 |
| Bolton Medical Inc | 3 | $452 |
| Cook Medical LLC | 4 | $415 |
| Cardiovascular Systems Inc. | 9 | $409 |
| Shockwave Medical, Inc | 2 | $387 |
| Surmodics, Inc. | 5 | $260 |
| Vasorum USA Inc. | 2 | $210 |
| Lemaitre Vascular, Inc. | 5 | $171 |
| Bard Peripheral Vascular, Inc. | 1 | $141 |
| Johnson & Johnson | 4 | $123 |
| Viz.ai, Inc. | 1 | $115 |
| Amgen | 4 | $99 |
| Smith+Nephew | 4 | $80 |
| Abbott | 3 | $68 |
| Novartis | 3 | $61 |
| Janssen Scientific Affairs, LLC | 2 | $54 |
| Innovation Technologies Inc | 1 | $49 |
| Acera Surgical, Inc. | 2 | $46 |
| Livanova USA, Inc. | 2 | $44 |
| Cardiva Medical, Inc. | 1 | $33 |
| Tactile Systems Technology Inc | 1 | $30 |
| Recor Medical Inc | 1 | $25 |
| Solventum Corporation | 1 | $24 |
| Organogenesis Inc. | 1 | $22 |
| Ossur Americas, Inc. | 1 | $21 |
| Cormedix Inc. | 1 | $18 |
| Reprise Biomedical, Inc. | 1 | $18 |
| Convatec Inc. | 1 | $17 |
| Polynovo North America LLC | 1 | $15 |
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.
- Alto Abdominal Stent Graft System$9,326
- US Und$7,800
- AFX$7,142
- ENROUTE Transcarotid Neuroprotection System$6,757
- (9520) IGT Devices Undivided$5,200
- ENHANCE Transcarotid Peripheral Access Kit$4,793
- ENROUTE Transcarotid Stent System$3,869
- ENROUTE 0.014 Guidewire$3,869
- ENROUTE Transcarotid Stent$2,719
- Ovation$2,188
- AFX2$2,047
- Endo$1,875
- ENROUTE .014 Guidewire$924
- Auryon Laser System 100-120 Vac$733
- Shockwave IVL System with the Shockwave C2 Coronary IVL Catheter$316
- TREO ABDOMINAL STENT-GRAFT SYSTEM$295
- (6554) Peripheral Vascular Undivided$244
- BioMimics$243
- Turbo Elite$242
- ROSEN$226
How this compares
$55,371 in reported general payments places this provider in the 90th percentile of 142 vascular surgery providers in Massachusetts.
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 |
|---|---|---|
| ClopidogrelClopidogrel Bisulfate | 25 | $280 |
Paid to pharmacies, not to this prescriber.
Other vascular surgery in Boston
- Thomas OdonnellBoston$845K
- Anahita DuaBoston$186K
- Marc SchermerhornBoston$71K
- Edwin GravereauxBoston$61K
- Shivani KumarBoston$45K
- Richard CambriaBoston$43K
- Payam SalehiBoston$40K
- Nicholas SwerdlowBoston$33K
- Mohamad HussainBoston$24K
- Stephanie TalutisBoston$22K
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.