Marcus Semel, MD
Surgery · Boston, MANPI 1124226766
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $1,165 of the $1,882 with a category attached, or 61.9%. 6 manufacturers reported payments, led by Silk Road Medical, Inc. at 53.2% of the total. Reporting peaked in 2019 at $1,002 and has fallen 63.1% since, to $370 in 2025.
Across 18 payments — averaging $104.56 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Silk Road Medical, Inc.$1K
- Bolton Medical Inc$286
- Medtronic$207
- Endologix LLC$170
- W. L. Gore & Associates, Inc.$145
- Boston Scientific$73
What the payments were for
- Travel & lodging$65235%
- Food & beverage$1,16562%
- Education$653%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
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. | 7 | $1,002 |
| Bolton Medical Inc | 2 | $286 |
| Medtronic(2 entities) | 5 | $207 |
| Endologix LLC | 2 | $170 |
| W. L. Gore & Associates, Inc. | 1 | $145 |
| Boston Scientific | 1 | $73 |
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$1,067
- ENROUTE Transcarotid Stent System$760
- ENHANCE Transcarotid Peripheral Access Kit$760
- ENROUTE 0.014 Guidewire$760
- TREO ABDOMINAL STENT-GRAFT SYSTEM$286
- ENROUTE Transcarotid Stent$154
- ENROUTE Enflate Transcarotid RX Balloon Dilatation Catheter$154
- GORE VIABAHN VBX Balloon Expandable Endo$145
How this compares
$1,882 in reported general payments places this provider in the 55th percentile of 694 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 |
|---|---|---|
| EliquisApixaban | 17 | $9,936 |
| ClopidogrelClopidogrel Bisulfate | 23 | $304 |
| Atorvastatin Calcium | 14 | $89 |
Paid to pharmacies, not to this prescriber.
Other surgery in Boston
- Michael TarnoffBoston$1.4M
- Omar KudsiBoston$886K
- Ankit MehtaBoston$278K
- Johannes KratzBoston$79K
- Ian BehrBoston$56K
- Parsia VagefiBoston$53K
- Abdelrahman NimeriBoston$50K
- Denise GeeBoston$40K
- Matthew HutterBoston$37K
- Barbara BlancoBoston$36K
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.