Abdul Aadam, MD
Gastroenterology · Chicago, ILNPI 1013038744
Payments from drug & device makers
What this record shows
The money is spread across several categories — speaking fees (58.4%), consulting fees and food and beverage — rather than concentrated in one kind of arrangement. Boston Scientific accounts for 69.2% of it on its own, with 9 other manufacturers making up the rest. Reporting peaked in 2019 at $35,098 and has fallen 83.3% since, to $5,869 in 2025. Among gastroenterology clinicians in IL 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 347 payments — averaging $397.23 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Boston Scientific$95K
- US Endoscopy$15K
- ERBE USA Inc$9K
- Conmed Corporation$7K
- Medtronic$6K
- Cook Medical LLC$2K
- plus $3K from 4 others
What the payments were for
- Consulting fees$38,87528%
- Speaking & faculty fees$80,46358%
- Travel & lodging$8,7556%
- Food & beverage$9,5987%
- Entertainment$1480%
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 |
|---|---|---|
| Boston Scientific | 204 | $95,327 |
| US Endoscopy | 16 | $14,626 |
| ERBE USA Inc | 8 | $9,092 |
| Conmed Corporation | 23 | $7,487 |
| Medtronic | 16 | $5,558 |
| Cook Medical LLC | 65 | $2,473 |
| Steris Corporation | 11 | $1,655 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 1 | $1,250 |
| Olympus America Inc. | 2 | $252 |
| Novo Nordisk | 1 | $119 |
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.
- GENERAL - THERAPIES$16,628
- ORISE$16,005
- WALLFLEX$8,700
- CAPTIVATOR$8,638
- GORE VIABIL$6,500
- RESOLUTION CLIP$6,407
- ERBE$5,467
- SPYGLASS$5,209
- EXALT$4,471
- HYBRID KNIFE$3,500
- Padlock Clip$2,500
- Resolution 360 Clip$1,542
- Bravo$1,500
- XIFAXAN$1,250
- SpyGlass Discover$1,000
- CONMED BILIARY$570
- Hemospray$449
- CONMED GENERATORS$415
- CONMED DILATION$415
- EXALT Model D$313
How this compares
$137,839 in reported general payments places this provider in the 95th percentile of 787 gastroenterology providers in Illinois.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| ZenpepLipase/Protease/Amylase | 11 | $25,384 |
| VoqueznaVonoprazan Fumarate | 13 | $8,527 |
| TrulancePlecanatide | 11 | $5,725 |
| Sucralfate | 33 | $3,550 |
| Peg 3350-ElectrolyteSodium Chloride/Nahco3/Kcl/Peg | 147 | $2,643 |
| Omeprazole | 152 | $2,047 |
| Sod Sulf-Potass Sulf-Mag SulfSodium, Potassium,mag Sulfates | 23 | $1,601 |
| Acetaminophen-CodeineAcetaminophen With Codeine | 26 | $1,558 |
| Pantoprazole Sodium | 31 | $418 |
| Nystatin | 22 | $106 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLCTrulance | $1,250 | $5,72511 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 95th percentile of 787 gastroenterology providers in Illinois.
Other gastroenterology in Chicago
- David RubinChicago$1.5M
- Stephen HanauerChicago$1.4M
- Steven FlammChicago$1.3M
- Darren BrennerChicago$1.1M
- Russell CohenChicago$690K
- Parambir DulaiChicago$668K
- Christopher ChapmanChicago$645K
- Saurabh KapurChicago$532K
- Ikuo HiranoChicago$457K
- Adam SteinChicago$438K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.