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 W BUSSE

Allopathic & Osteopathic Physicians Internal Medicine Allergy & Immunology

NPI
1881661486
CMS profile
1128649
Location
MADISON, WI

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 · PY2024 · Entire year

$98,645.12

57 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

PY2024 · entire year · sorted by reported total

By paying entity

PY2024 · entire year · sorted by reported total

Paying entityAmountRecords
GENZYME CORPORATION $48,998.34 21
Regeneron Healthcare Solutions, Inc. $33,990.78 26
Regeneron Pharmaceuticals, Inc. $10,426.00 7
Alnylam Pharmaceuticals Inc. $1,830.00 1
SANOFI US SERVICES INC. $1,800.00 1
Incyte Corporation $1,600.00 1

Payment records · PY2024

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

General Payments · PY2024 · Physicians and non-physician practitioners · CMS publication 2026-06-30

57 matching records · $98,645.12 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 57 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 57.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Regeneron Healthcare Solutions, Inc. $97.5011/12/2024 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261114017336 CMS
Regeneron Healthcare Solutions, Inc. $97.5011/12/2024 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261114017338 CMS
Regeneron Pharmaceuticals, Inc. $1,312.0010/25/2024 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261114397126 CMS
Regeneron Pharmaceuticals, Inc. $656.0010/25/2024 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261114397128 CMS
Regeneron Healthcare Solutions, Inc. $195.0009/17/2024 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261114017332 CMS
Regeneron Healthcare Solutions, Inc. $702.2009/17/2024 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261114017334 CMS
Regeneron Healthcare Solutions, Inc. $8,738.0009/12/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/20261114017330 CMS
Regeneron Healthcare Solutions, Inc. $314.8809/10/2024 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261114017328 CMS
GENZYME CORPORATION $500.0009/09/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/20261139842287 CMS
Regeneron Healthcare Solutions, Inc. $163.8309/09/2024 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261114017326 CMS
Regeneron Healthcare Solutions, Inc. $131.4009/06/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261114017324 CMS
Regeneron Healthcare Solutions, Inc. $359.1508/16/2024 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261114017322 CMS
SANOFI US SERVICES INC. $1,800.0008/14/2024 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261139842205 CMS
Regeneron Healthcare Solutions, Inc. $652.4008/13/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/20261114017320 CMS
GENZYME CORPORATION $18,000.0008/12/2024 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261139842299 CMS
Regeneron Pharmaceuticals, Inc. $1,398.0007/26/2024 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261114397122 CMS
Regeneron Pharmaceuticals, Inc. $2,796.0007/26/2024 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261114397124 CMS
Regeneron Healthcare Solutions, Inc. $742.9507/06/2024 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261114017318 CMS
Regeneron Healthcare Solutions, Inc. $8,738.0006/27/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/20261114017316 CMS
Regeneron Healthcare Solutions, Inc. $201.1006/25/2024 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261114017314 CMS
Regeneron Healthcare Solutions, Inc. $214.6306/22/2024 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261114017312 CMS
Regeneron Healthcare Solutions, Inc. $86.8006/21/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261114017310 CMS
GENZYME CORPORATION $500.0005/31/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/20261139842259 CMS
GENZYME CORPORATION $3,481.5005/30/2024 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261139842275 CMS
Regeneron Healthcare Solutions, Inc. $1,048.5005/28/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/20261114017308 CMS
GENZYME CORPORATION $9,178.5005/16/2024 Consulting Fee No dispute reported Delay: No
Change: NEW
06/30/20261155227610 CMS
GENZYME CORPORATION $85.2305/16/2024 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261155227612 CMS
GENZYME CORPORATION $54.9905/16/2024 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261155227614 CMS
GENZYME CORPORATION $70.0005/16/2024 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261155227616 CMS
GENZYME CORPORATION $215.0005/16/2024 Travel and Lodging No dispute reported Delay: No
Change: NEW
06/30/20261155227618 CMS
GENZYME CORPORATION $593.1805/16/2024 Travel and Lodging No dispute reported Delay: No
Change: NEW
06/30/20261155227620 CMS
GENZYME CORPORATION $409.1305/16/2024 Travel and Lodging No dispute reported Delay: No
Change: NEW
06/30/20261155227622 CMS
GENZYME CORPORATION $123.2804/11/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261139842231 CMS
GENZYME CORPORATION $3,146.0004/11/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/20261139842233 CMS
GENZYME CORPORATION $97.5004/11/2024 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261139842235 CMS
GENZYME CORPORATION $125.0004/10/2024 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/20261139842247 CMS
GENZYME CORPORATION $8,738.0004/10/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/20261139842249 CMS
GENZYME CORPORATION $698.2104/10/2024 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261139842251 CMS
GENZYME CORPORATION $885.3204/10/2024 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261139842253 CMS
GENZYME CORPORATION $97.5004/10/2024 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261139842255 CMS
Regeneron Healthcare Solutions, Inc. $536.8003/26/2024 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261114017302 CMS
Regeneron Healthcare Solutions, Inc. $97.5003/26/2024 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261114017304 CMS
Regeneron Healthcare Solutions, Inc. $359.3003/26/2024 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261114017306 CMS
Regeneron Healthcare Solutions, Inc. $359.3003/23/2024 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261114017300 CMS
Alnylam Pharmaceuticals Inc. $1,830.0003/07/2024 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/20261125848884 CMS
Regeneron Healthcare Solutions, Inc. $609.3902/24/2024 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261114017298 CMS
Regeneron Healthcare Solutions, Inc. $117.6502/08/2024 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261114017294 CMS
Regeneron Healthcare Solutions, Inc. $117.6502/08/2024 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/20261114017296 CMS
Regeneron Healthcare Solutions, Inc. $8,738.0002/06/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/20261114017292 CMS
GENZYME CORPORATION $250.0002/04/2024 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/20261139842169 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $289,846.51 183
PY2020 $133,335.42 53
PY2021 $158,718.20 85
PY2022 $84,795.62 36
PY2023 $116,107.13 70
PY2024 $98,645.12 57
PY2025 $46,737.83 33

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.

Cite this record.

Plain
WILLIAM W BUSSE, NPI 1881661486. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1881661486.
APA 7
IndustryPayments. (2026). WILLIAM W BUSSE, NPI 1881661486 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1881661486
Bluebook
WILLIAM W BUSSE, NPI 1881661486, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1881661486.

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