Jeffrey Nathanson
Gastroenterology · Northbrook, ILNPI 1972559615
Payments from drug & device makers
$327,722in general payments, 2019–2025
Across 684 payments — averaging $479.13 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Genentech, Inc.$185K
- Regeneron$80K
- Takeda Pharmaceuticals U.S.A., Inc.$26K
- E.r. Squibb & Sons, L.L.C.$15K
- Braintree Laboratories, Inc.$9K
- AbbVie$5K
- plus $8K from 31 others
General payments by program year
19
20
21
22
23
24
25
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.
How this compares
$327,722 in reported general payments places this provider in the 90th percentile of 787 gastroenterology providers in Illinois.
Other gastroenterology in Northbrook
- Kamran AyubOak Lawn$4.3M
- David RubinChicago$3.6M
- Jonathan RosenbergGurnee$3.1M
- Stephen HanauerChicago$2.9M
- Parambir DulaiChicago$2.2M
- Charles BerkelhammerOak Lawn$1.9M
- Ikuo HiranoChicago$1.8M
- Manish BhuvaLake Barrington$1.7M
- Steven FlammChicago$1.6M
- Amar NaikDes Plaines$1.4M
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.