Has Sreekumar Madassery, MD received payments from drug or device companies?

Yes. Drug and device makers reported $727,351 in general payments to Sreekumar Madassery, MD across 795 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 Sreekumar Madassery, 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 Sreekumar Madassery, 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.

Sreekumar Madassery, MD

Vascular & Interventional Radiology · Chicago, ILNPI 1063649093

Payments from drug & device makers

$727,351in general payments, 2019–2025

Across 795 payments — averaging $914.91 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

Shockwave Medical, Inc$151K
Penumbra, Inc.$128K
Philips North America LLC$116K
Medtronic$74K
Cook Incorporated$57K
Abbott$49K
plus $152K from 40 others

What the payments were for

Consulting fees$110,06124%
Speaking & faculty fees$242,32553%
Grants$5,0001%
Travel & lodging$55,03412%
Food & beverage$38,0008%
Education$8,7902%

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
Shockwave Medical, Inc	30	$151,478
Penumbra, Inc.	164	$127,669
Philips North America LLC	116	$116,459
Medtronic(2 entities)	38	$74,185
Cook Incorporated	16	$56,794
Abbott	106	$49,235
Boston Scientific	66	$38,764
M.a. Med Alliance S.A.	3	$29,415
Angiodynamics, Inc.	23	$28,123
Asahi Intecc USA, Inc.	17	$20,465
Cardiovascular Systems Inc.	31	$13,080
Cook Medical LLC	74	$7,551
Cardiva Medical, Inc.	3	$3,150
Inari Medical, Inc.	12	$2,290
Stryker	17	$1,161
Bard Peripheral Vascular, Inc.	6	$1,140
Argon Medical Devices, Inc.	8	$734
Asahi Intecc CO., LTD.	3	$620
Limflow Inc.	2	$614
W. L. Gore & Associates, Inc.	5	$581
Viz.ai, Inc.	5	$482
Avantec Vascular Corporation	2	$406
Cagent Vascular Inc	6	$236
Organogenesis Inc.	2	$220
Veryan Medical Incorporated	2	$204
Endologix LLC	2	$195
Mimedx Group, Inc.	5	$183
Kerecis Limited	1	$181
Avinger Inc.	1	$166
Tactile Systems Technology Inc	2	$151
Biocompatibles, Inc.	1	$147
Avenu Medical Inc.	2	$145
Johnson & Johnson	3	$143
Reflow Medical Inc	2	$128
Contego Medical, Inc	1	$114
Surmodics, Inc.	3	$112
Cordis US CORP.	3	$107
Mercator Medsystems, Inc.	1	$93
Smith+Nephew	1	$81
Nipro Medical Corporation	1	$79
Siemens Medical Solutions USA, Inc.	1	$70
Terumo Medical Corporation	3	$63
Averitas Pharma Inc.	1	$58
Teleflex LLC	2	$44
Covidien LP	1	$20
Cashflow Solutions, LLC	1	$16

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.

(9520) IGT Devices Undivided$51,007
Indigo$36,149
Indigo System$35,007
Shockwave IVL System with the Shockwave C2 Coronary IVL Catheter$33,535
AlphaVac$25,549
RUBY Coil$22,701
Zilver Vena$21,461
US Und$17,674
Penumbra Ruby Coil$15,938
AMPLATZER Vascular Plug and Accs$14,200
PERIPHERAL VASCULAR$14,021
Zilver PTX$13,600
Peripheral Orbital Atherectomy System$12,276
Omnilink Elite vascular stent system$10,686
(R11) US EQ Undivided$10,500
MRI Equip Undiv$8,539
IN.PACT AV$6,825
ADVANCE$6,820
(6554) Peripheral Vascular Undivided$6,501
AMPLATZER$6,000

How this compares

$727,351 in reported general payments places this provider in the 95th percentile of 197 vascular & interventional radiology providers in Illinois.

See all vascular & interventional radiology providers in Illinois →

Medicare billing

Part B allowed, 2024

$135,333

Medicare patients

421

Services billed

1,253

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.

Other vascular & interventional radiology in Chicago

Riad SalemChicago$2.5M
Robert LewandowskiChicago$1.3M
Kush DesaiChicago$1.2M
Christopher MolvarChicago$850K
Ron GabaChicago$480K
Bulent ArslanChicago$355K
Sameer AnsariChicago$335K
Ahsun RiazChicago$201K
Ramona GuptaChicago$85K
Scott ResnickChicago$70K

See the full list for Illinois →

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.

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