William Muller
Pediatric Infectious Diseases · Chicago, ILNPI 1790896041
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $42,229 of the $56,905 with a category attached, or 74.2%. 7 manufacturers reported payments, led by AstraZeneca at 54.7% of the total. Reporting peaked in 2023 at $36,967 and has fallen 79.0% since, to $7,781 in 2024.
Across 49 payments — averaging $1161.33 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AstraZeneca$31K
- Sanofi Pasteur Inc.$11K
- Merck$10K
- Diasorin Inc.$3K
- Astellas Pharma US Inc$1K
- Novartis$99
- plus $46 from 1 others
Across 710 payments — averaging $8268.34 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.
- Modernatx, Inc.$3.8M
- AstraZeneca$443K
- Astellas Pharma Global Development$358K
- Abbott$292K
- Astrazeneca UK Limited$290K
- Merck$241K
- plus $474K from 8 others
What the payments were for
- Consulting fees$42,22974%
- Speaking & faculty fees$2,0004%
- Travel & lodging$11,32920%
- Food & beverage$1,3472%
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 |
|---|---|---|
| AstraZeneca | 13 | $31,109 |
| Sanofi Pasteur Inc. | 12 | $11,018 |
| Merck | 14 | $9,683 |
| Diasorin Inc. | 5 | $3,499 |
| Astellas Pharma US Inc | 3 | $1,451 |
| Novartis | 1 | $99 |
| Melinta Therapeutics, LLC | 1 | $46 |
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.
How this compares
$56,905 in reported general payments places this provider in the 85th percentile of 29 pediatric infectious diseases providers in Illinois.
See all pediatric infectious diseases providers in Illinois →
Other pediatric infectious diseases in Chicago
- Tina TanChicago$172K
- Ben KatzChicago$113K
- Ram YogevChicago$99K
- Ravi JhaveriChicago$73K
- David NguyenChicago$18K
- Stanford ShulmanChicago$10K
- Madan KumarChicago$6K
- Colleen NashChicago$400
- Julia RosebushChicago$309
- Silvana CarrChicago$298
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.