Marc Schermerhorn, MD
Vascular Surgery · Boston, MANPI 1356391312
Payments from drug & device makers
What this record shows
The money is spread across several categories — consulting fees (56.9%), travel and lodging and food and beverage — rather than concentrated in one kind of arrangement. 16 manufacturers reported payments, led by Silk Road Medical, Inc. at 29.1% of the total. Reporting peaked in 2019 at $51,246 and has fallen 99.6% since, to $223 in 2025. Among vascular surgery clinicians in MA 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 173 payments — averaging $409.00 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Silk Road Medical, Inc.$21K
- Abbott$12K
- Medtronic$8K
- Shape Memory Medical Inc.$8K
- Cook Incorporated$7K
- Endologix LLC$6K
- plus $9K from 10 others
Across 214 payments — averaging $3617.98 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.
- Philips North America LLC$141K
- Bolton Medical Inc$121K
- Medtronic$106K
- Shape Memory Medical Inc.$87K
- Silk Road Medical, Inc.$64K
- W. L. Gore & Associates, Inc.$56K
- plus $199K from 5 others
What the payments were for
- Consulting fees$40,25057%
- Speaking & faculty fees$5,5008%
- Travel & lodging$15,33022%
- Food & beverage$9,67714%
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 |
|---|---|---|
| Silk Road Medical, Inc. | 23 | $20,556 |
| Abbott | 20 | $12,492 |
| Medtronic(2 entities) | 37 | $8,043 |
| Shape Memory Medical Inc. | 24 | $7,704 |
| Cook Incorporated | 3 | $7,000 |
| Endologix LLC | 8 | $5,557 |
| W. L. Gore & Associates, Inc. | 26 | $3,182 |
| Cook Medical LLC | 21 | $2,386 |
| Hydrocision, Inc. | 1 | $1,750 |
| Philips North America LLC | 1 | $880 |
| Cook Research Incorporated | 2 | $675 |
| Bolton Medical Inc | 3 | $213 |
| Inari Medical, Inc. | 1 | $198 |
| Getinge USA Sales, LLC | 1 | $69 |
| Smith+Nephew | 1 | $29 |
| Tactile Systems Technology Inc | 1 | $24 |
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.
- ENROUTE Transcarotid Neuroprotection System$20,343
- ENHANCE Transcarotid Peripheral Access Kit$18,604
- ENROUTE Transcarotid Stent System$18,468
- ENROUTE 0.014 Guidewire$18,468
- Omnilink Elite vascular stent system$11,704
- IMPEDE EMBOLIZATION PLUG$7,170
- Endurant$6,082
- Cook Medical AFEN$5,000
- ENROUTE Transcarotid Stent$1,875
- TenJet$1,750
- SpineJet$1,750
- AlloJet$1,750
- Zenith Alpha$1,643
- Cook Medical Zenith$1,618
- GORE TAG Thoracic Endoprosthesis$1,275
- IGT Systems Und$880
- GORE TAG Thoracic Branch Endoprosthesis$511
- Cook Medical Advanced Tech$500
- Supera peripheral stent system$439
- ENDURANT IIS$403
How this compares
$70,757 in reported general payments places this provider in the 95th 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.
Other vascular surgery in Boston
- Thomas OdonnellBoston$845K
- Anahita DuaBoston$186K
- Edwin GravereauxBoston$61K
- Christopher KwolekBoston$55K
- 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.