William Busse
Allergy & Immunology · Madison, WINPI 1881661486
Payments from drug & device makers
What this record shows
The money is spread across several categories — consulting fees (53.9%), speaking fees and travel and lodging — rather than concentrated in one kind of arrangement. 19 manufacturers reported payments, led by Sanofi at 52.4% of the total. Reporting peaked in 2019 at $289,847 and has fallen 83.9% since, to $46,738 in 2025. Among allergy & immunology clinicians in WI with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 517 payments — averaging $1795.33 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Sanofi$487K
- Regeneron Healthcare Solutions, Inc.$169K
- Sanofi-aventis U.S. LLC$106K
- GSK$70K
- Regeneron$47K
- F. Hoffmann-la Roche AG$14K
- plus $35K from 13 others
Across 153 payments — averaging $567.03 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Sanofi$42K
- Sanofi-aventis U.S. LLC$17K
- F. Hoffmann-la Roche AG$11K
- Novartis Pharma AG$9K
- Genentech, Inc.$4K
- Regeneron$3K
What the payments were for
- Consulting fees$500,42054%
- Speaking & faculty fees$276,13130%
- Travel & lodging$143,28515%
- Food & beverage$8,3211%
- Education$290%
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| Sanofi | 233 | $486,546 |
| Regeneron Healthcare Solutions, Inc. | 133 | $168,940 |
| Sanofi-aventis U.S. LLC | 36 | $105,969 |
| GSK | 37 | $70,248 |
| Regeneron | 41 | $47,453 |
| F. Hoffmann-la Roche AG | 4 | $13,777 |
| Novartis | 8 | $7,324 |
| Sanofi US Services Inc. | 4 | $7,301 |
| Genentech USA, Inc. | 5 | $4,711 |
| Incyte Corporation | 4 | $3,610 |
| Astrazeneca UK Limited | 1 | $2,334 |
| Amgen | 1 | $2,200 |
| AstraZeneca | 2 | $2,159 |
| Boehringer Ingelheim | 1 | $2,080 |
| Alnylam Pharmaceuticals Inc. | 1 | $1,830 |
| Boston Scientific | 3 | $1,250 |
| Eagle Pharmaceuticals, Inc. | 1 | $400 |
| Blueprint Medicines Corporation | 1 | $30 |
| Teva Pharmaceuticals USA, Inc. | 1 | $25 |
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
- DUPIXENT$484,056
- NO PRODUCT DISCUSSED$42,328
- NUCALA$38,849
- XOLAIR$23,558
- TRELEGY ELLIPTA$14,727
- WAYRILZ$3,400
- SPIRIVA$2,080
- CLINICAL TRIAL PRODUCT$1,250
How this compares
$928,186 in reported general payments places this provider in the 95th percentile of 55 allergy & immunology providers in Wisconsin.
Other allergy & immunology in Madison
- Allan LuskinMadison$51K
- Daniel RosenbergMadison$1K
- Grace HendricksonMadison$1K
- Yingyu GaoMadison$834
- Julia ThorsenMadison$700
- John KellyMadison$262
- Ashleigh OlsonMadison$54
- Delena NguyenMadison$53
- Caitlan MurphyMadison$34
- Jared DarveauxOnalaska$287K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.