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

WILLIAM T DAWSON

Allopathic & Osteopathic Physicians Radiology Diagnostic Radiology

NPI
1821291915
CMS profile
219221
Location
MARRERO, LA

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.

Saved items

Saved only in this browser. No account or alerts.

Filter and download payment records

General Payments · PY2023 · Entire year

$6,295.18

52 records · 0 disputed

Summary and payment records

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

“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
Honoraria $3,000.00 1
Travel and Lodging $1,750.72 9
Food and Beverage $1,544.46 42

By paying entity

PY2023 · entire year · sorted by reported total

Page 1 of 2; records 1–50 of 52 matching records. This page contains 50 records (maximum 50), not the full filtered export. Use the CSV download for all matching records.

IndustryPayments · General Payments

WILLIAM T DAWSON

NPI 1821291915 · CMS profile ID 219221

Allopathic & Osteopathic Physicians / Radiology / Diagnostic Radiology

MARRERO, LA

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.

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.

General Payments, PY2023; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types

Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00

Page 1 of 2; records 1–50 of 52 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1821291915?year=2023&recipient=provider#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9

Cite these filtered records

The citation includes this program year, filters, data edition, and page of results.

Plain
WILLIAM T DAWSON, NPI 1821291915, CMS profile ID 219221. General Payments, PY2023; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types. Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00. Page 1 of 2; records 1–50 of 52 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1821291915?year=2023&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9.
APA 7
IndustryPayments. (2026). WILLIAM T DAWSON, NPI 1821291915, CMS profile ID 219221. General Payments, PY2023; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types. Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00. Page 1 of 2; records 1–50 of 52 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1821291915?year=2023&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9.
Bluebook
WILLIAM T DAWSON, NPI 1821291915, CMS profile ID 219221, IndustryPayments, General Payments, PY2023; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types (Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00). Page 1 of 2; records 1–50 of 52 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9. https://industrypayments.org/provider/npi-1821291915?year=2023&recipient=provider#records-h.

Centers for Medicare & Medicaid Services, Open Payments

Citation formats are provided for reference; check the requirements of your publication.

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

52 matching records · $6,295.18 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 52 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 52.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
CARDIVA MEDICAL, INC. $109.1112/15/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1039473527 CMS
Merck Sharp & Dohme LLC $46.3712/13/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1048266381 CMS
TriSalus Life Sciences, Inc. $9.5612/09/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1055074813 CMS
Ipsen Biopharmaceuticals, Inc $31.7211/29/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1045411767 CMS
TriSalus Life Sciences, Inc. $25.4411/22/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1055074803 CMS
Merck Sharp & Dohme LLC $32.1011/15/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1048266375 CMS
TriSalus Life Sciences, Inc. $24.3810/25/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1055074797 CMS
TriSalus Life Sciences, Inc. $16.3610/13/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1055074789 CMS
Bayer Healthcare Pharmaceuticals Inc. $18.0510/09/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1000820483 CMS
Bayer Healthcare Pharmaceuticals Inc. $18.9510/04/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1000820655 CMS
TriSalus Life Sciences, Inc. $71.7510/01/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1055074783 CMS
TriSalus Life Sciences, Inc. $124.2809/28/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1055074767 CMS
TriSalus Life Sciences, Inc. $24.1709/28/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1055074777 CMS
Eisai Inc. $16.0209/27/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1023337573 CMS
TriSalus Life Sciences, Inc. $32.3009/26/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1055074763 CMS
Ipsen Biopharmaceuticals, Inc $25.4208/31/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1045411763 CMS
Merck Sharp & Dohme LLC $20.3808/23/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1048266379 CMS
TriSalus Life Sciences, Inc. $36.5308/21/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1055074707 CMS
TriSalus Life Sciences, Inc. $104.1408/21/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1055074715 CMS
TriSalus Life Sciences, Inc. $3,000.0008/21/2023 Honoraria No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1055074721 CMS
TriSalus Life Sciences, Inc. $50.0008/21/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1055074729 CMS
TriSalus Life Sciences, Inc. $82.1408/21/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1055074733 CMS
TriSalus Life Sciences, Inc. $65.0008/21/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1055074741 CMS
TriSalus Life Sciences, Inc. $20.1808/21/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1055074751 CMS
TriSalus Life Sciences, Inc. $84.8708/21/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1055074757 CMS
TriSalus Life Sciences, Inc. $174.3608/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1055074665 CMS
TriSalus Life Sciences, Inc. $27.7508/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1055074671 CMS
TriSalus Life Sciences, Inc. $117.1108/20/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1055074678 CMS
TriSalus Life Sciences, Inc. $198.3608/20/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1055074683 CMS
TriSalus Life Sciences, Inc. $837.8008/20/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1055074693 CMS
TriSalus Life Sciences, Inc. $295.2608/20/2023 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1055074703 CMS
Daiichi Sankyo Inc. $25.5408/16/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1006427393 CMS
AstraZeneca Pharmaceuticals LP $17.7808/10/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1011480101 CMS
W. L. Gore & Associates, Inc. $150.6208/04/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1054131999 CMS
Eisai Inc. $19.8208/03/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1023337571 CMS
Astellas Pharma US Inc $15.5908/02/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1034359491 CMS
GE HealthCare $27.5707/25/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1039527223 CMS
Alexion Pharmaceuticals, Inc. $17.3707/12/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1017017689 CMS
Eisai Inc. $17.3206/22/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1023337569 CMS
GENZYME CORPORATION $22.2806/14/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050152587 CMS
Adaptive Biotechnologies Corporation $15.7106/07/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1022975005 CMS
Merck Sharp & Dohme LLC $22.5106/07/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1048714423 CMS
Ipsen Biopharmaceuticals, Inc $32.1906/01/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1045411757 CMS
GENZYME CORPORATION $29.4005/10/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050152563 CMS
Eisai Inc. $19.9605/03/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1023337567 CMS
ARGON MEDICAL DEVICES, INC. $17.9704/15/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1056875143 CMS
Bayer Healthcare Pharmaceuticals Inc. $21.2004/05/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1000820925 CMS
GE HealthCare $2.3403/15/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1039527243 CMS
Merck Sharp & Dohme LLC $18.4203/08/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1048266377 CMS
Novartis Pharmaceuticals Corporation $19.5602/08/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 991820797 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $820.58 20
PY2020 $94.92 6
PY2021 $155.83 10
PY2022 $852.53 31
PY2023 $6,295.18 52
PY2024 $1,098.66 31
PY2025 $1,962.54 47

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, 2022, 2023, 2024, 2025
Source files and profile matching
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.