Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · as published 2026-01-23 View official record Methodology

Covered recipient · General Payments record

DOUGLAS W MASSOP

Allopathic & Osteopathic Physicians Surgery Vascular Surgery

NPI
1609861665
CMS profile
253694
Location
WEST DES MOINES, IA

General Payments · PY2018–2024

$546,359.07

  • Reported across 569 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$172,069.89

112 records · 0 disputed

Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.

How these totals are calculated
  • The total is the sum of the General Payments records CMS published for the labeled program year(s), exactly as published. Nothing is estimated, weighted, or combined across categories.
  • General Payments only. Research and Ownership/Investment are separate datasets and are never summed with these figures; amounts are kept separate per program year.
  • Featured-page threshold (a presentation gate, not a judgment): records>=3 OR total>=100 (all years).
  • Methodology & Data — sourcing, labeling, and limitations.

By nature of payment

PY2024 · sorted by reported total

Nature of paymentAmountRecords
Compensation for serving as faculty or as a speaker for a medical education program $77,700.00 5
Consulting Fee $67,200.00 17
Travel and Lodging $25,592.33 59
Food and Beverage $1,577.56 31

By paying entity

PY2024 · sorted by reported total

Paying entityAmountRecords
Silk Road Medical, Inc. $172,069.89 112

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $34,757.79 40
PY2019 $53,134.18 86
PY2020 $19,224.89 34
PY2021 $130,123.12 174
PY2023 $137,049.20 123
PY2024 $172,069.89 112

Payment records · PY2024 (112)

Sorted by paying entity, then date · as published by CMS

Program year 2024 20182019202020212023 Record-level detail is published for PY2024; earlier years are summarised in “By program year”.
Paying entity Amount Date Nature of payment Dispute status Published Record ID Source
Silk Road Medical, Inc. $41.59 01/15/2024 Food and Beverage Undisputed 01/23/2026 1082256652 CMS
Silk Road Medical, Inc. $174.00 01/15/2024 Travel and Lodging Undisputed 01/23/2026 1082256656 CMS
Silk Road Medical, Inc. $237.55 01/18/2024 Travel and Lodging Undisputed 01/23/2026 1082256654 CMS
Silk Road Medical, Inc. $184.00 01/18/2024 Travel and Lodging Undisputed 01/23/2026 1082256658 CMS
Silk Road Medical, Inc. $89.69 01/18/2024 Food and Beverage Undisputed 01/23/2026 1082256708 CMS
Silk Road Medical, Inc. $184.00 01/18/2024 Travel and Lodging Undisputed 01/23/2026 1082256732 CMS
Silk Road Medical, Inc. $125.00 01/19/2024 Travel and Lodging Undisputed 01/23/2026 1082256660 CMS
Silk Road Medical, Inc. $34.70 01/25/2024 Food and Beverage Undisputed 01/23/2026 1082256342 CMS
Silk Road Medical, Inc. $7,000.00 01/25/2024 Consulting Fee Undisputed 01/23/2026 1082256344 CMS
Silk Road Medical, Inc. $23.07 01/25/2024 Food and Beverage Undisputed 01/23/2026 1082256346 CMS
Silk Road Medical, Inc. $37.32 01/25/2024 Food and Beverage Undisputed 01/23/2026 1082256348 CMS
Silk Road Medical, Inc. $77.57 01/25/2024 Travel and Lodging Undisputed 01/23/2026 1082256536 CMS
Silk Road Medical, Inc. $3,850.00 02/01/2024 Consulting Fee Undisputed 01/23/2026 1082256384 CMS
Silk Road Medical, Inc. $513.80 03/05/2024 Travel and Lodging Undisputed 01/23/2026 1082256614 CMS
Silk Road Medical, Inc. $204.00 03/05/2024 Travel and Lodging Undisputed 01/23/2026 1082256616 CMS
Silk Road Medical, Inc. $406.04 03/05/2024 Travel and Lodging Undisputed 01/23/2026 1082256618 CMS
Silk Road Medical, Inc. $122.06 03/05/2024 Food and Beverage Undisputed 01/23/2026 1082256710 CMS
Silk Road Medical, Inc. $4,550.00 03/08/2024 Consulting Fee Undisputed 01/23/2026 1082256350 CMS
Silk Road Medical, Inc. $48.85 03/08/2024 Food and Beverage Undisputed 01/23/2026 1082256352 CMS
Silk Road Medical, Inc. $4,900.00 03/08/2024 Consulting Fee Undisputed 01/23/2026 1082256354 CMS
Silk Road Medical, Inc. $132.18 03/08/2024 Travel and Lodging Undisputed 01/23/2026 1082256538 CMS
Silk Road Medical, Inc. $708.20 03/18/2024 Travel and Lodging Undisputed 01/23/2026 1082256600 CMS
Silk Road Medical, Inc. $237.55 03/18/2024 Travel and Lodging Undisputed 01/23/2026 1082256662 CMS
Silk Road Medical, Inc. $184.00 03/18/2024 Travel and Lodging Undisputed 01/23/2026 1082256664 CMS
Silk Road Medical, Inc. $174.00 03/19/2024 Travel and Lodging Undisputed 01/23/2026 1082256666 CMS
Silk Road Medical, Inc. $3,500.00 03/28/2024 Consulting Fee Undisputed 01/23/2026 1082256356 CMS
Silk Road Medical, Inc. $33.36 03/28/2024 Food and Beverage Undisputed 01/23/2026 1082256358 CMS
Silk Road Medical, Inc. $126.90 03/28/2024 Travel and Lodging Undisputed 01/23/2026 1082256540 CMS
Silk Road Medical, Inc. $3,500.00 04/05/2024 Consulting Fee Undisputed 01/23/2026 1082256360 CMS
Silk Road Medical, Inc. $921.89 04/22/2024 Travel and Lodging Undisputed 01/23/2026 1082256620 CMS
Silk Road Medical, Inc. $762.91 04/22/2024 Travel and Lodging Undisputed 01/23/2026 1082256622 CMS
Silk Road Medical, Inc. $159.43 04/22/2024 Travel and Lodging Undisputed 01/23/2026 1082256624 CMS
Silk Road Medical, Inc. $495.75 04/23/2024 Travel and Lodging Undisputed 01/23/2026 1082256626 CMS
Silk Road Medical, Inc. $37.42 04/25/2024 Food and Beverage Undisputed 01/23/2026 1082256362 CMS
Silk Road Medical, Inc. $23.00 04/25/2024 Travel and Lodging Undisputed 01/23/2026 1082256542 CMS
Silk Road Medical, Inc. $5,250.00 04/25/2024 Compensation for serving as faculty or as a speaker for a medical education program Undisputed 01/23/2026 1082256720 CMS
Silk Road Medical, Inc. $5,950.00 05/02/2024 Consulting Fee Undisputed 01/23/2026 1082256364 CMS
Silk Road Medical, Inc. $790.20 05/07/2024 Travel and Lodging Undisputed 01/23/2026 1082256602 CMS
Silk Road Medical, Inc. $499.64 05/07/2024 Travel and Lodging Undisputed 01/23/2026 1082256668 CMS
Silk Road Medical, Inc. $185.20 05/07/2024 Travel and Lodging Undisputed 01/23/2026 1082256672 CMS
Silk Road Medical, Inc. $38.43 05/08/2024 Food and Beverage Undisputed 01/23/2026 1082256670 CMS
Silk Road Medical, Inc. $64.95 05/08/2024 Food and Beverage Undisputed 01/23/2026 1082256712 CMS
Silk Road Medical, Inc. $81.58 05/08/2024 Food and Beverage Undisputed 01/23/2026 1082256714 CMS
Silk Road Medical, Inc. $175.20 05/09/2024 Travel and Lodging Undisputed 01/23/2026 1082256674 CMS
Silk Road Medical, Inc. $3,500.00 05/17/2024 Consulting Fee Undisputed 01/23/2026 1082256368 CMS
Silk Road Medical, Inc. $3,500.00 05/17/2024 Consulting Fee Undisputed 01/23/2026 1082256532 CMS
Silk Road Medical, Inc. $21.00 05/17/2024 Travel and Lodging Undisputed 01/23/2026 1082256544 CMS
Silk Road Medical, Inc. $33.05 05/17/2024 Food and Beverage Undisputed 01/23/2026 1082256546 CMS
Silk Road Medical, Inc. $5,250.00 06/06/2024 Consulting Fee Undisputed 01/23/2026 1082256370 CMS
Silk Road Medical, Inc. $588.95 07/10/2024 Travel and Lodging Undisputed 01/23/2026 1082256604 CMS
Silk Road Medical, Inc. $185.20 07/10/2024 Travel and Lodging Undisputed 01/23/2026 1082256676 CMS
Silk Road Medical, Inc. $1,750.00 07/11/2024 Consulting Fee Undisputed 01/23/2026 1082256372 CMS
Silk Road Medical, Inc. $3,500.00 07/18/2024 Consulting Fee Undisputed 01/23/2026 1082256374 CMS
Silk Road Medical, Inc. $3,500.00 07/18/2024 Consulting Fee Undisputed 01/23/2026 1082256534 CMS
Silk Road Medical, Inc. $42.00 07/18/2024 Travel and Lodging Undisputed 01/23/2026 1082256548 CMS
Silk Road Medical, Inc. $41.62 07/18/2024 Food and Beverage Undisputed 01/23/2026 1082256550 CMS
Silk Road Medical, Inc. $117.00 07/18/2024 Food and Beverage Undisputed 01/23/2026 1082256552 CMS
Silk Road Medical, Inc. $608.95 08/15/2024 Travel and Lodging Undisputed 01/23/2026 1082256606 CMS
Silk Road Medical, Inc. $185.20 08/15/2024 Travel and Lodging Undisputed 01/23/2026 1082256678 CMS
Silk Road Medical, Inc. $175.20 08/15/2024 Travel and Lodging Undisputed 01/23/2026 1082256680 CMS
Silk Road Medical, Inc. $2,450.00 08/22/2024 Consulting Fee Undisputed 01/23/2026 1082256376 CMS
Silk Road Medical, Inc. $6,450.20 08/28/2024 Travel and Lodging Undisputed 01/23/2026 1082256628 CMS
Silk Road Medical, Inc. $3,500.00 08/29/2024 Consulting Fee Undisputed 01/23/2026 1082256378 CMS
Silk Road Medical, Inc. $24.00 08/29/2024 Travel and Lodging Undisputed 01/23/2026 1082256554 CMS
Silk Road Medical, Inc. $14.67 08/29/2024 Food and Beverage Undisputed 01/23/2026 1082256556 CMS
Silk Road Medical, Inc. $36.29 08/29/2024 Food and Beverage Undisputed 01/23/2026 1082256558 CMS
Silk Road Medical, Inc. $85.00 08/29/2024 Travel and Lodging Undisputed 01/23/2026 1082256630 CMS
Silk Road Medical, Inc. $1,440.00 08/29/2024 Travel and Lodging Undisputed 01/23/2026 1082256632 CMS
Silk Road Medical, Inc. $263.00 09/07/2024 Travel and Lodging Undisputed 01/23/2026 1082256634 CMS
Silk Road Medical, Inc. $35.00 09/11/2024 Travel and Lodging Undisputed 01/23/2026 1082256636 CMS
Silk Road Medical, Inc. $29.38 09/12/2024 Food and Beverage Undisputed 01/23/2026 1082256700 CMS
Silk Road Medical, Inc. $49.46 09/20/2024 Travel and Lodging Undisputed 01/23/2026 1082256562 CMS
Silk Road Medical, Inc. $1,001.60 09/20/2024 Travel and Lodging Undisputed 01/23/2026 1082256564 CMS
Silk Road Medical, Inc. $14.61 09/20/2024 Food and Beverage Undisputed 01/23/2026 1082256566 CMS
Silk Road Medical, Inc. $432.06 09/20/2024 Travel and Lodging Undisputed 01/23/2026 1082256598 CMS
Silk Road Medical, Inc. $56,700.00 09/20/2024 Compensation for serving as faculty or as a speaker for a medical education program Undisputed 01/23/2026 1082256724 CMS
Silk Road Medical, Inc. $185.20 10/01/2024 Travel and Lodging Undisputed 01/23/2026 1082256682 CMS
Silk Road Medical, Inc. $175.20 10/01/2024 Travel and Lodging Undisputed 01/23/2026 1082256684 CMS
Silk Road Medical, Inc. $3,500.00 10/10/2024 Consulting Fee Undisputed 01/23/2026 1082256380 CMS
Silk Road Medical, Inc. $20.00 10/10/2024 Travel and Lodging Undisputed 01/23/2026 1082256568 CMS
Silk Road Medical, Inc. $21.14 10/10/2024 Food and Beverage Undisputed 01/23/2026 1082256570 CMS
Silk Road Medical, Inc. $14.67 10/10/2024 Food and Beverage Undisputed 01/23/2026 1082256572 CMS
Silk Road Medical, Inc. $1,322.62 10/14/2024 Travel and Lodging Undisputed 01/23/2026 1082256608 CMS
Silk Road Medical, Inc. $798.97 10/14/2024 Travel and Lodging Undisputed 01/23/2026 1082256638 CMS
Silk Road Medical, Inc. $99.22 10/14/2024 Food and Beverage Undisputed 01/23/2026 1082256702 CMS
Silk Road Medical, Inc. $7.16 10/15/2024 Food and Beverage Undisputed 01/23/2026 1082256704 CMS
Silk Road Medical, Inc. $24.00 10/24/2024 Travel and Lodging Undisputed 01/23/2026 1082256574 CMS
Silk Road Medical, Inc. $26.67 10/24/2024 Food and Beverage Undisputed 01/23/2026 1082256576 CMS
Silk Road Medical, Inc. $7,000.00 10/24/2024 Compensation for serving as faculty or as a speaker for a medical education program Undisputed 01/23/2026 1082256726 CMS
Silk Road Medical, Inc. $249.82 11/24/2024 Travel and Lodging Undisputed 01/23/2026 1082256686 CMS
Silk Road Medical, Inc. $528.94 11/25/2024 Travel and Lodging Undisputed 01/23/2026 1082256610 CMS
Silk Road Medical, Inc. $175.20 11/25/2024 Travel and Lodging Undisputed 01/23/2026 1082256688 CMS
Silk Road Medical, Inc. $185.20 11/25/2024 Travel and Lodging Undisputed 01/23/2026 1082256690 CMS
Silk Road Medical, Inc. $756.38 12/02/2024 Travel and Lodging Undisputed 01/23/2026 1082256640 CMS
Silk Road Medical, Inc. $305.98 12/02/2024 Travel and Lodging Undisputed 01/23/2026 1082256642 CMS
Silk Road Medical, Inc. $232.41 12/02/2024 Travel and Lodging Undisputed 01/23/2026 1082256644 CMS
Silk Road Medical, Inc. $7.59 12/03/2024 Food and Beverage Undisputed 01/23/2026 1082256706 CMS
Silk Road Medical, Inc. $3,500.00 12/05/2024 Consulting Fee Undisputed 01/23/2026 1082256386 CMS
Silk Road Medical, Inc. $20.00 12/05/2024 Travel and Lodging Undisputed 01/23/2026 1082256578 CMS
Silk Road Medical, Inc. $19.47 12/05/2024 Food and Beverage Undisputed 01/23/2026 1082256580 CMS
Silk Road Medical, Inc. $36.29 12/05/2024 Food and Beverage Undisputed 01/23/2026 1082256582 CMS
Silk Road Medical, Inc. $197.95 12/08/2024 Travel and Lodging Undisputed 01/23/2026 1082256596 CMS
Silk Road Medical, Inc. $840.95 12/08/2024 Travel and Lodging Undisputed 01/23/2026 1082256646 CMS
Silk Road Medical, Inc. $243.68 12/08/2024 Travel and Lodging Undisputed 01/23/2026 1082256648 CMS
Silk Road Medical, Inc. $200.53 12/09/2024 Food and Beverage Undisputed 01/23/2026 1082256650 CMS
Silk Road Medical, Inc. $31.23 12/12/2024 Food and Beverage Undisputed 01/23/2026 1082256584 CMS
Silk Road Medical, Inc. $40.00 12/12/2024 Travel and Lodging Undisputed 01/23/2026 1082256586 CMS
Silk Road Medical, Inc. $40.11 12/12/2024 Food and Beverage Undisputed 01/23/2026 1082256588 CMS
Silk Road Medical, Inc. $5,250.00 12/12/2024 Compensation for serving as faculty or as a speaker for a medical education program Undisputed 01/23/2026 1082256728 CMS
Silk Road Medical, Inc. $133.84 12/20/2024 Food and Beverage Undisputed 01/23/2026 1082256590 CMS
Silk Road Medical, Inc. $21.00 12/20/2024 Travel and Lodging Undisputed 01/23/2026 1082256592 CMS
Silk Road Medical, Inc. $3,500.00 12/20/2024 Compensation for serving as faculty or as a speaker for a medical education program Undisputed 01/23/2026 1082256730 CMS

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-01-23
Program years on this page
2018, 2019, 2020, 2021, 2023, 2024
Source files
Dataset page · Bulk file · PY2018 , PY2019 , PY2020 , PY2021 , PY2023 , PY2024
Generated from
OP_DTL_GNRL_PGYR2024_P01232026_01102026.csv

One page per canonical provider; split Profile_IDs are merged via Associated_Covered_Recipient_Profile_ID_1/_2 from the Covered Recipient Profile Supplement.

Corrections to the substance of a record route to CMS through its review-and-dispute process; errors in how this site mirrors or displays a record route to us. Both paths are described in Methodology & Data.