Has Koushik Das, MD received payments from drug or device companies?

Yes. Drug and device makers reported $34,953 in general payments to Koushik Das, MD across 87 transactions between 2019–2025. Most Open Payments records nationally are meals worth under $20; a reported payment is not evidence of wrongdoing.

Does a payment mean Koushik Das, MD did something wrong?

No. Federal law requires drug and device makers to report almost every transfer of value to a physician, including a $14 sandwich at a lunch presentation. Consulting fees, research funding and royalties to device inventors are ordinary, legal parts of medicine. This site reports what was disclosed; it makes no allegation.

Where does this information about Koushik Das, MD come from?

The U.S. Centers for Medicare & Medicaid Services. Payments come from Open Payments, published under the Physician Payments Sunshine Act. Billing and prescribing figures come from the Medicare Physician & Other Practitioners and Part D Prescriber public use files for 2024.

Koushik Das, MD

Gastroenterology · Saint Louis, MONPI 1023245859

Payments from drug & device makers

What this record shows

The money is spread across several categories — consulting fees (42.3%), education and food and beverage — rather than concentrated in one kind of arrangement. 11 manufacturers reported payments, led by Olympus America Inc. at 53.0% of the total. 2025 is the largest year on record at $30,073, more than ten times the $713 reported in 2019. Among gastroenterology clinicians in MO with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.

$34,953in general payments, 2019–2025

Across 87 payments — averaging $401.75 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

Olympus America Inc.$19K
Olympus Corporation Of The Americas$11K
Boston Scientific$2K
Olympus Medical Systems Corporation$1K
Medtronic$725
Olympus Corporation$550
plus $1K from 5 others

What the payments were for

Consulting fees$14,78042%
Speaking & faculty fees$3,85011%
Grants$870%
Travel & lodging$2,4407%
Food & beverage$4,44513%
Education$9,35027%

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
Olympus America Inc.	25	$18,526
Olympus Corporation Of The Americas	21	$10,771
Boston Scientific	19	$1,666
Olympus Medical Systems Corporation	2	$1,305
Medtronic	7	$725
Olympus Corporation	1	$550
Cook Medical LLC	5	$424
Steris Corporation	3	$420
Conmed Corporation	2	$266
Stryker	1	$159
ERBE USA Inc	1	$140

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.

VISIGLIDE$16,775
Single Use Biliary Balloon Dilator$10,748
HANAROSTENT Esophagus TTS(CCC)$9,492
Single Use Electrosurgical Snare SD-400$550
GI Genius$353
AXIOS$330
TRUFREEZE$328
CONMED BILIARY$266
Spiration Valve System$159
ProdiGI$153
SpyGlass Discover$147
Erbe VIO3$140
WallFlex Duodenal$140
CONMED HEMOSTASIS$139
EVIS EXERA III VIDEO SYSTEM CENTER$137
EVIS EXERA III COLONOVIDEOSCOPE$137
GASTROINTESTINAL VIDEOSCOPE$137
CONMED GENERATORS$127
CONMED DILATION$127
GENERAL - BILIARY DEVICES$125

How this compares

$34,953 in reported general payments places this provider in the 90th percentile of 374 gastroenterology providers in Missouri.

See all gastroenterology providers in Missouri →

Medicare billing

Part B allowed, 2024

$98,680

Medicare patients

332

Services billed

632

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
CreonLipase/Protease/Amylase	17	$28,735
Sucralfate	16	$2,182
Sod Sulf-Potass Sulf-Mag SulfSodium, Potassium,mag Sulfates	28	$1,742
Gavilyte-GPeg3350/Sod Sulf,bicarb,cl/Kcl	81	$1,043
Omeprazole	55	$881
Pantoprazole Sodium	58	$641
Peg-3350 And ElectrolytesPeg3350/Sod Sulf,bicarb,cl/Kcl	22	$330
Gavilyte-CPeg3350/Sod Sulf,bicarb,cl/Kcl	19	$280
Ciprofloxacin Hcl	20	$54

Paid to pharmacies, not to this prescriber.

Other gastroenterology in Saint Louis

Gregory SayukSaint Louis$1.1M
Katie SchroederSaint Louis$730K
David AlpersSaint Louis$616K
Parakkal DeepakSaint Louis$205K
Mauricio Lisker MelmanSaint Louis$179K
Matthew CiorbaSaint Louis$156K
Bruce BaconSaint Louis$138K
Jeffrey CrippinSaint Louis$120K
Vladimir KushnirSaint Louis$118K
Kayci Huff-HardySaint Louis$116K

See the full list for Missouri →

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.

Is this you, or does something look wrong? →