Physician profile

William W Busse

Allergy & Immunology (Internal Medicine) · Madison, WI

NPI 1881661486

$928,185.83

in general payments reported to CMS, 2019-2025

21 companies · $47K in 2025

The $47K reported for 2025 was more than what 96% of Allergy & Immunology (Internal Medicine) providers received nationally (typical 2025 total: $681).

Payments by year

General and research payments by program year, as reported to CMS.

What the payments were for

Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.

View as a table
Payment typeAmount (2023-2025)
Compensation For Services Other Than Consulting, Including Serving As Faculty Or As A Speaker At A Venue Other Than A Continuing Education Program$107,377.90
Consulting Fee$105,994.00
Travel and Lodging$45,711.50
Food and Beverage$2,406.68

Payment-type detail covers 2023-2025; earlier years are included in totals but not broken out here.

Who reported paying

General payments only, as reported to CMS. Research payments are listed separately below. Product names cover 2023-2025.

CompanyGeneral paymentsYearsTop products
Genzyme Corporation $486,546.46 2019-2025
Regeneron Healthcare Solutions, INC. $168,939.52 2019-2025 Dupixent
Sanofi-Aventis U.S. LLC $105,969.13 2019-2022
Glaxosmithkline, LLC. $70,247.80 2019-2021
Regeneron Pharmaceuticals, INC. $47,452.68 2019-2025 Dupixent
F. Hoffmann-La Roche Ag $13,776.56 2019-2021
Novartis Pharmaceuticals Corporation $7,323.88 2019
Sanofi US Services INC. $7,301.29 2023-2025
Genentech USA, INC. $4,710.86 2019
Incyte Corporation $3,610.00 2022-2025
Astrazeneca Uk Limited $2,334.00 2021
Amgen INC. $2,200.00 2020
Astrazeneca Pharmaceuticals Lp $2,159.01 2019-2020
Boehringer Ingelheim Pharmaceuticals, INC. $2,080.00 2021
Alnylam Pharmaceuticals INC. $1,830.00 2024
Show all 19 companies
CompanyGeneral paymentsYearsTop products
Boston Scientific Corporation $1,250.00 2019-2020
Eagle Pharmaceuticals, INC. $400.00 2019
Blueprint Medicines Corporation $29.53 2023 Ayvakit
Teva Pharmaceuticals USA, INC. $25.11 2019

2 companies reported research payments only; those appear in the research section below.

Drugs and devices associated with these payments

CMS records which products a payment was associated with, not how the money was allocated. Association is not allocation: one payment can be associated with several products, and a product listing does not mean the payment was made because of that product. Product detail covers 2023-2025.

Research and ownership

$86,756.19 in research payments reported 2019-2025. Research payments are often institution-directed and tied to clinical trials: they are reported under a clinician's name but frequently go to a hospital or research organization, and usually reflect participation in medical research.

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Payment summary

William W Busse

$928,185.83

in general payments reported 2019-2025

Years
2019-2025
Top company
Genzyme Corporation
Context
The $47K reported for 2025 was more than what 96% of Allergy & Immunology (Internal Medicine) providers received nationally (typical 2025 total: $681).

https://glasscript.com/doctor/1128649/william-w-busse

Source: CMS Open Payments, program years 2019-2025. Payments are legal and often routine.

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Source: CMS Open Payments, program years 2019-2025, as reported to CMS by drug and device makers (published June 30, 2026). Drug and device detail covers 2023-2025.