Douglas Massop
Vascular Surgery · West Des Moines, IANPI 1609861665
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $364,073 of the $590,487 with a category attached, or 61.7%. Silk Road Medical, Inc. accounts for 86.0% of it on its own, with 5 other manufacturers making up the rest. Reporting peaked in 2024 at $172,070 and has fallen 54.2% since, to $78,885 in 2025. Among vascular surgery clinicians in IA 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 609 payments — averaging $969.60 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Silk Road Medical, Inc.$508K
- Boston Scientific$79K
- Medtronic$4K
- W. L. Gore & Associates, Inc.$150
- Regeneron Healthcare Solutions, Inc.$71
- Abbott$50
Across 3 payments — averaging $2865.33 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.$9K
What the payments were for
- Consulting fees$364,07362%
- Speaking & faculty fees$133,67523%
- Travel & lodging$83,79714%
- Food & beverage$8,9422%
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. | 518 | $507,679 |
| Boston Scientific | 80 | $78,885 |
| Medtronic | 5 | $3,652 |
| W. L. Gore & Associates, Inc. | 1 | $150 |
| Regeneron Healthcare Solutions, Inc. | 3 | $71 |
| Abbott | 2 | $50 |
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$739,343
- ENROUTE Transcarotid Stent$438,197
- ENHANCE Transcarotid Peripheral Access Kit$192,927
- ENROUTE Enflate Transcarotid RX Balloon Dilatation Catheter$170,584
- ENROUTE .014 Guidewire$126,719
- ENROUTE Transcarotid Stent System$66,208
- ENROUTE 0.014 Guidewire$66,208
- ClosureFast$3,600
- GENERAL - THERAPIES$3,043
- VIABAHN VBX Balloon Expandable Endoprosthesis$150
How this compares
$590,487 in reported general payments places this provider in the 95th percentile of 38 vascular surgery providers in Iowa.
Other vascular surgery in West Des Moines
- Eric ScottWest Des Moines$393K
- David ChewWest Des Moines$43K
- Nicholas SouthardWest Des Moines$27K
- Dennis FryWest Des Moines$12K
- Zane YoungWest Des Moines$8K
- Woosup ParkWest Des Moines$6K
- Rori MankinsWest Des Moines$5K
- Jose BorromeoWest Des Moines$4K
- Harold HsuWest Des Moines$4K
- James EbaughWest Des Moines$3K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.