William Hahn
Medical Oncology · Boston, MANPI 1457313652
Payments from drug & device makers
Across 39 payments — averaging $23,647 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Pfizer$527K
- Eli Lilly$300K
- Jubilant Therapeutics Inc$81K
- Genentech, Inc.$8K
- Sanofi-aventis U.S. LLC$4K
- Merck$2K
- plus $250 from 1 others
Across 37 payments — averaging $1142.57 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.
- AbbVie$35K
- Tesaro, Inc.$6K
- GSK$1K
What the payments were for
- Consulting fees$14,09415%
- Speaking & faculty fees$80,01283%
- Travel & lodging$2,7693%
- Food & beverage$900%
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 |
|---|---|---|
| Pfizer | 15 | $526,600 |
| Eli Lilly | 2 | $300,000 |
| Jubilant Therapeutics Inc | 11 | $80,898 |
| Genentech, Inc. | 5 | $8,500 |
| Sanofi-aventis U.S. LLC | 2 | $3,568 |
| Merck | 2 | $2,400 |
| GSK | 2 | $250 |
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.
- NO PRODUCT DISCUSSED$3,534
- KEYTRUDA$2,400
How this compares
$922,215 in reported general payments places this provider in the 75th percentile of 308 medical oncology providers in Massachusetts.
Other medical oncology in Boston
- Otto MetzgerBoston$141.9M
- Suzanne GeorgeBoston$88.5M
- Pasi Antero JanneBoston$67.2M
- Erica MayerBoston$51.8M
- Toni ChoueiriBoston$28.3M
- Laura SpringBoston$22.9M
- James ClearyBoston$18.8M
- Marlise LuskinBoston$18.7M
- Ana Garrido-CastroBoston$18M
- Jacob LaubachBoston$17.9M
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.