Arthur Decillis
Internal Medicine · Madison, CTNPI 1215202056
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $1,047,438 of the $1,048,251 with a category attached, or 99.9%. Alnylam Pharmaceuticals Inc. accounts for 74.5% of it on its own, with 2 other manufacturers making up the rest. Among internal medicine clinicians in CT 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 102 payments — averaging $10,277 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Alnylam Pharmaceuticals Inc.$781K
- Exelixis Inc.$154K
- Daiichi Sankyo Inc.$113K
What the payments were for
- Consulting fees$1,047,438100%
- Travel & lodging$2200%
- Food & beverage$5930%
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 |
|---|---|---|
| Alnylam Pharmaceuticals Inc. | 43 | $781,190 |
| Exelixis Inc. | 32 | $154,452 |
| Daiichi Sankyo Inc. | 27 | $112,609 |
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.
- Cabometyx$154,310
How this compares
$1,048,251 in reported general payments places this provider in the 95th percentile of 2,067 internal medicine providers in Connecticut.
Other internal medicine in Madison
- Steven RyderWestport$3.9M
- Nancy BrownNew Haven$1.6M
- Charles MontanoCromwell$970K
- Gary BlickNorwalk$683K
- Scott GottliebStamford$508K
- Jeffrey KatzOxford$361K
- Nicholas DainiakBridgeport$352K
- Thomas PellechiGreenwich$196K
- John PriceGlastonbury$188K
- Richard LiftonNew Haven$160K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.