Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · CMS publication 2026-06-30 View official record

Covered recipient · General Payments record

DOUGLAS W MASSOP

Allopathic & Osteopathic Physicians Surgery Vascular Surgery

NPI
1609861665
CMS profile
253694
Location
WEST DES MOINES, IA

A name match is not confirmation of identity. CMS publishes records for different people under similar names; the NPI, specialty, and location shown on this page are the CMS-published fields that distinguish them.

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General Payments · PY2023 · Entire year

$137,049.20

123 records · 0 disputed

Summary and payment records

  • CMS publication 2026-06-30
Read the payment records

Other CMS categories — not shown on this page

Research Payments

CMS also publishes Research Payments as a separate dataset. This site does not currently mirror it, and no research figure is shown on this page. This provider appears in that dataset.

“If you are a physician who served as a principal investigator on a research study, you may see the payments associated with that research study listed under your name. This does not necessarily mean the payments are attributed to you. The dollar amount of the record corresponds to the total payment; the amounts are not attributed to each individual on the record.”

— Centers for Medicare & Medicaid Services, Open Payments Frequently Asked Questions, FAQ #12224

These records are published by CMS and can be viewed on this provider’s official CMS record. View this provider on CMS Open Payments ↗

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

— Centers for Medicare & Medicaid Services, Open Payments

A reported payment reflects a financial relationship a company disclosed. It does not indicate wrongdoing or a conflict of interest, and it says nothing about the quality of a provider's care.

These records are submitted to CMS and attested to by the reporting companies. CMS publishes them as reported; this site mirrors them without independent verification.

A payment attributed to a provider may have been made to a third party — a hospital, practice, or research institution — rather than paid to the provider personally.

How these totals are calculated
  • This total is the sum of the individual General Payments record amounts CMS published for the labeled program year(s); each record amount is used unmodified. The total itself is computed by this site. 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.
  • Methodology & Data — sourcing, labeling, and limitations.

Provider summaries generated . CMS updates this data on an annual cycle, and corrections or successful disputes made at CMS may not yet appear here. The official CMS record is authoritative for the current state. View the official CMS record ↗

By nature of payment

PY2023 · entire year · sorted by reported total

Nature of paymentAmountRecords
Consulting Fee $115,097.60 25
Travel and Lodging $20,621.31 72
Food and Beverage $1,330.29 26

By paying entity

PY2023 · entire year · sorted by reported total

Paying entityAmountRecords
Silk Road Medical, Inc. $136,978.49 120
Regeneron Healthcare Solutions, Inc. $70.71 3

Payment records · PY2023

Ordering applied by this site (date, newest first, then paying entity) · record values are shown as CMS published them

General Payments · PY2023 · Physicians and non-physician practitioners · CMS publication 2026-06-30

123 matching records · $137,049.20 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 123 matching records (CSV)

CSV includes CMS record IDs, source and publication dates, the data edition, and a link to these filters. Formula-like text cells are prefixed with an apostrophe for spreadsheet safety.

Showing records 1–50 of 123.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Silk Road Medical, Inc. $2,450.0012/07/2023 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014747721 CMS
Silk Road Medical, Inc. $4,200.0011/09/2023 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014747709 CMS
Silk Road Medical, Inc. $3,500.0010/26/2023 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014747627 CMS
Silk Road Medical, Inc. $34.4310/26/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014747639 CMS
Silk Road Medical, Inc. $7.0010/26/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014747651 CMS
Regeneron Healthcare Solutions, Inc. $22.5110/25/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026999291217 CMS
Silk Road Medical, Inc. $166.7510/19/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014748109 CMS
Silk Road Medical, Inc. $176.7510/18/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014748097 CMS
Silk Road Medical, Inc. $253.9810/16/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014748079 CMS
Silk Road Medical, Inc. $829.8010/16/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014748593 CMS
Silk Road Medical, Inc. $8,050.0010/05/2023 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014747612 CMS
Silk Road Medical, Inc. $3,500.0009/21/2023 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014747586 CMS
Silk Road Medical, Inc. $336.6709/21/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014747601 CMS
Silk Road Medical, Inc. $111.8909/11/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014747733 CMS
Silk Road Medical, Inc. $235.4209/11/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014748067 CMS
Silk Road Medical, Inc. $3,853.7009/07/2023 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014747569 CMS
Silk Road Medical, Inc. $5,950.0009/07/2023 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014747695 CMS
Silk Road Medical, Inc. $5,368.9008/24/2023 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014747557 CMS
Silk Road Medical, Inc. $156.6208/22/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014748053 CMS
Silk Road Medical, Inc. $560.6008/21/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014747777 CMS
Silk Road Medical, Inc. $241.3008/21/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014748041 CMS
Silk Road Medical, Inc. $20.0008/03/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014747487 CMS
Silk Road Medical, Inc. $34.4608/03/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014747499 CMS
Silk Road Medical, Inc. $3,500.0008/03/2023 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014747513 CMS
Silk Road Medical, Inc. $19.0408/03/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014747529 CMS
Silk Road Medical, Inc. $3,150.0008/03/2023 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014747544 CMS
Silk Road Medical, Inc. $166.7508/01/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014748027 CMS
Silk Road Medical, Inc. $189.0007/27/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014748389 CMS
Silk Road Medical, Inc. $218.0007/27/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014748405 CMS
Silk Road Medical, Inc. $651.0007/27/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014748575 CMS
Silk Road Medical, Inc. $3,500.0007/20/2023 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014747445 CMS
Silk Road Medical, Inc. $77.8807/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014747461 CMS
Silk Road Medical, Inc. $39.1507/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014747475 CMS
Silk Road Medical, Inc. $266.4007/20/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014747997 CMS
Silk Road Medical, Inc. $166.7507/20/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014748009 CMS
Silk Road Medical, Inc. $3,500.0007/20/2023 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014749945 CMS
Silk Road Medical, Inc. $176.7507/19/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014747983 CMS
Silk Road Medical, Inc. $235.4207/17/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014747971 CMS
Silk Road Medical, Inc. $176.7507/14/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014747959 CMS
Silk Road Medical, Inc. $4,550.0007/13/2023 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014747419 CMS
Silk Road Medical, Inc. $1,400.0007/13/2023 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014747431 CMS
Silk Road Medical, Inc. $235.4207/13/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014747943 CMS
Silk Road Medical, Inc. $429.8007/12/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014747765 CMS
Regeneron Healthcare Solutions, Inc. $24.8507/11/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026999291213 CMS
Silk Road Medical, Inc. $1,634.0107/06/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014747745 CMS
Silk Road Medical, Inc. $278.8807/06/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014748375 CMS
Silk Road Medical, Inc. $3,500.0006/22/2023 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014747365 CMS
Silk Road Medical, Inc. $18.0006/22/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014747378 CMS
Silk Road Medical, Inc. $18.5106/22/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014747393 CMS
Silk Road Medical, Inc. $111.0406/22/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261014747405 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
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
PY2025 $78,885.33 80

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-06-30
Program years on this page
2019, 2020, 2021, 2023, 2024, 2025
Source files and profile matching
Source files
Dataset page · Bulk file · PY2019 , PY2020 , PY2021 , PY2023 , PY2024 , PY2025
Generated from
OP_DTL_GNRL_PGYR2025_P06302026_06032026.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.

Cite this record.

Plain
DOUGLAS W MASSOP, NPI 1609861665. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1609861665.
APA 7
IndustryPayments. (2026). DOUGLAS W MASSOP, NPI 1609861665 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1609861665
Bluebook
DOUGLAS W MASSOP, NPI 1609861665, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1609861665.

Source: Centers for Medicare & Medicaid Services, Open Payments.