Medicare Enrolled
Dr. Sreekumar Madassery, M.D.
Vascular & Interventional Radiology Physician · Chicago, IL
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating.
This page presents federal public records about Dr. Madassery from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
Are you Dr. Madassery?
Request a correction or review of any data shown here. Provider portal →
What this data tells you about Dr. Madassery
Dr. Sreekumar Madassery is a vascular & interventional radiology physician in Chicago, IL, with 17 years of NPI registration. Based on federal Medicare data, Dr. Madassery performed 1,574 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Madassery received a total of $478,628 from 42 pharmaceutical and/or device companies across 763 payment records. A record can group multiple payments. These transfers are publicly reported through CMS Open Payments. Disclosure alone does not establish their effect on care. A reliable breakdown by payment category is not available in this snapshot. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Madassery is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
✓ 17 years of NPI registration
▲ 1,574 Medicare services
$478,628 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗1,574
Medicare services
Bottom 49% in IL for vascular & interventional radiology physician
Not available
Unique patients (not deduplicated)
$68
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Sedation by physician, initial 15 minutes Administration of a drug to induce depression of consciousness by the physician performing a procedure. This code covers the initial 15 minutes of sedation for patients aged 5 years or older. |
213 | $11 | $40 |
| Ultrasound guidance for blood vessel access Use of ultrasound imaging to help locate and access a blood vessel. This guidance assists healthcare providers in performing procedures such as inserting IV lines or drawing blood. |
194 | $13 | $50 |
| Hospital follow-up visit, moderate complexity Follow-up hospital visit for an existing patient involving moderate medical decision making. The visit requires at least 35 minutes of time spent on the date of service. |
120 | $68 | $175 |
| Ultrasound of arm and leg arteries This procedure uses sound waves to create images of the blood vessels in the arms and legs. It allows healthcare providers to examine the structure and blood flow within these arteries. |
108 | $11 | $41 |
| Skin and tissue removal, 20 sq cm or less This procedure involves the surgical excision of skin and underlying tissue from an area measuring 20 square centimeters or smaller. |
81 | $49 | $379 |
| Ultrasound of head and neck blood flow, bilateral An ultrasound exam that uses sound waves to visualize and assess blood flow in the vessels of both the head and the neck. |
78 | $31 | $129 |
| Fluoroscopic guidance for central vein access device Use of live X-ray imaging to guide the placement or removal of a central vein access device. |
69 | $16 | $61 |
| Radiologist review of arm or leg artery image A radiologist reviews images of the arteries in the arm or leg. This process involves analyzing the visual data to assess the blood vessels. |
62 | $73 | $177 |
| Radiologist review of abdominal aorta image A radiologist reviews images of the abdominal aorta to evaluate the blood vessel. |
61 | $59 | $195 |
| Initial hospital admission, low complexity Initial hospital inpatient or observation care for a new patient involving straightforward or low-level medical decision making, with at least 40 minutes total time on the date of the encounter. |
54 | $72 | $252 |
| Ultrasound of leg arteries or grafts An ultrasound exam that uses sound waves to create images of the arteries in one leg or any grafts present in that leg. |
53 | $19 | $86 |
| Balloon angioplasty of leg artery, initial vessel A procedure to widen a narrowed or blocked artery in the leg using a balloon catheter. This is performed on the first vessel treated during the session. |
46 | $477 | $2,049 |
| Ultrasound of arm and leg arteries A non-invasive imaging test that uses sound waves to examine the blood vessels in the arms and legs. It evaluates blood flow and checks for blockages or other vascular issues. |
39 | $18 | $74 |
| Radiologist review of CT-guided needle placement A radiologist reviews the CT imaging used to guide the placement of a needle. |
34 | $57 | $240 |
| Office visit, established patient, complex (40-54 min) An office or outpatient visit for an existing patient lasting between 40 and 54 minutes. This level of service is determined by the total time spent on the date of the encounter. |
34 | $147 | $320 |
| Ultrasound of leg arteries or grafts An imaging test that uses sound waves to create pictures of the blood vessels in the legs or any surgical grafts present. |
32 | $30 | $130 |
| Insertion of tunneled central venous catheter for infusion, age 5+ A surgical procedure to place a long-term catheter into a large vein for delivering medications or fluids. The catheter is tunneled under the skin to reduce infection risk and provide stable access for patients aged 5 and older. |
30 | $220 | $891 |
| Ultrasound of abdominal aorta An imaging test that uses sound waves to create pictures of the abdominal aorta, the large blood vessel that carries blood from the heart to the lower body. |
26 | $28 | $89 |
| New patient office visit, complex (60-74 min) | 23 | $172 | $465 |
| Balloon dilation of leg artery A procedure to widen a narrowed or blocked artery in the leg using a balloon catheter to restore blood flow. |
22 | $267 | $1,673 |
| Arterial catheter insertion, initial second order branch A procedure to insert a tube into a secondary branch of an artery in the abdomen, pelvis, or leg. |
21 | $210 | $3,699 |
| Radiologist review of arm or leg artery images A radiologist reviews images of the arteries in one or both arms or legs to assess blood flow and vessel health. |
20 | $80 | $218 |
| Ultrasound of arm or leg veins An ultrasound exam of the veins in the arm or leg. The test uses sound waves to check blood flow and may include compression and other maneuvers. |
17 | $29 | $115 |
| Arterial catheter insertion, initial third order branch Insertion of a tube into an abdominal, pelvic, or leg artery, specifically targeting the initial third order branch. |
16 | $183 | $5,855 |
| Ultrasound guidance for needle placement Use of ultrasound imaging to guide the precise placement of a needle during a medical procedure. |
15 | $26 | $108 |
| Insertion of non-tunneled central venous catheter A procedure to place a central venous catheter for infusion in patients aged 5 years or older. The catheter is inserted directly into a large vein without being tunneled under the skin. |
14 | $74 | $859 |
| Leg artery stent insertion A procedure to place a stent in the arteries of the leg to keep them open and improve blood flow. |
13 | $346 | $1,975 |
| Bone marrow biopsy and aspiration A procedure to remove a small sample of bone marrow and liquid for laboratory testing. The sample is analyzed to help diagnose various medical conditions. |
13 | $57 | $256 |
| Central venous port insertion A surgical procedure to place a small reservoir under the skin for long-term access to the bloodstream. The device is connected to a vein to allow for repeated medication administration or blood draws. |
11 | $295 | $3,827 |
| Replacement of tunneled central venous tube This procedure involves replacing an existing tunneled central venous catheter with a new one. The new tube is inserted through the same tunnel under the skin to maintain vascular access. |
11 | $149 | $2,474 |
| Ultrasound of arm or leg veins An ultrasound exam of the veins in one arm or leg using compression and other maneuvers to assess blood flow and check for blockages. |
11 | $18 | $75 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
11 | $143 | $367 |
| Initial hospital admission, moderate complexity Initial hospital inpatient or observation care for a new patient involving moderate-level medical decision making, with at least 55 minutes total time on the date of the encounter. |
11 | $112 | $336 |
| Hospital discharge management, 30+ min This service covers the care provided by a physician or qualified healthcare professional on the day a patient is discharged from the hospital. It requires more than 30 minutes of total time spent on the day of discharge. |
11 | $98 | $260 |
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. These counts do not measure clinical quality or years of experience.
6.7% high complexity
37.2% medium
56.1% routine
Industry Payment Transparency
Open Payments through 2024 ↗$478,628
Total received (2018-2024)
Avg $68,375/year across 7 years
Top 5% in IL for vascular & interventional radiology physician
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
42
Companies
763
Payment records
Payments are publicly reported; disclosure does not establish legality · Not evidence of wrongdoing · How to interpret →
Payment categories are unavailable while the source breakdown is being rebuilt. Company and year totals do not identify how much belongs to each category.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$100,768
2023
$90,832
2022
$57,342
2021
$39,362
2020
$41,210
2019
$77,613
2018
$71,503
Payments by company (2024)
Philips North America LLC
$42,996
Penumbra, Inc.
$14,928
ASAHI INTECC USA, INC.
$14,223
Cook Incorporated
$13,605
ShockWave Medical, Inc
$6,907
Abbott Laboratories
$2,472
AngioDynamics, Inc.
$2,183
Cook Medical LLC
$1,643
Avantec Vascular Corporation
$346
W. L. Gore & Associates, Inc.
$303
Boston Scientific Corporation
$285
Stryker Corporation
$211
Kerecis Limited
$181
Inari Medical, Inc.
$152
Reflow Medical Inc
$128
Cagent Vascular INC
$110
Bard Peripheral Vascular, Inc.
$36
Medtronic, Inc.
$32
Surmodics, Inc.
$25
Top 3 companies account for 71.6% of 2024 payments
All-time payments by company (2018-2024) ›
Penumbra, Inc.
$109,281
Abbott Laboratories
$85,438
Cook Incorporated
$59,863
Philips Electronics North America Corporation
$46,195
Philips North America LLC
$42,996
ShockWave Medical, Inc
$33,461
AngioDynamics, Inc.
$28,146
ASAHI INTECC USA, INC.
$14,223
Cardiovascular Systems Inc.
$13,823
CARDIVA MEDICAL, INC.
$12,207
Medtronic Vascular, Inc.
$7,304
Cook Medical LLC
$6,458
Boston Scientific Corporation
$5,094
Shockwave Medical, Inc
$4,447
Medtronic, Inc.
$1,460
Stryker Corporation
$1,245
ARGON MEDICAL DEVICES, INC.
$1,025
Bard Peripheral Vascular, Inc.
$765
W. L. Gore & Associates, Inc.
$615
LimFlow Inc.
$614
Viz.ai, Inc.
$482
Inari Medical, Inc.
$435
BARD PERIPHERAL VASCULAR, INC.
$427
Avantec Vascular Corporation
$406
Ethicon US, LLC
$224
Veryan Medical Incorporated
$204
Kerecis Limited
$181
Brightwater medical Inc
$177
Avinger Inc.
$166
Tactile Systems Technology Inc
$151
Biocompatibles, Inc.
$147
Avenu Medical Inc.
$145
Cagent Vascular INC
$130
Reflow Medical Inc
$128
ORGANOGENESIS INC.
$116
Contego Medical, Inc
$114
Terumo Medical Corporation
$84
Siemens Medical Solutions USA, Inc.
$70
Averitas Pharma Inc.
$58
BOSTON SCIENTIFIC CORPORATION
$52
Surmodics, Inc.
$47
Covidien LP
$20
Top 3 companies account for 53.2% of all-time payments
Associated products mentioned in payments ›
(1399) MRI Equip Undiv · (1621) Undivided Serv · (4066) Tack Endo Sys ATK · (5027) Intact Vascular Und · (5027) Intact Vascular Undivided · (5028) IGT Devices Systems Undivided · (5044) MCOT · (6536) Phoenix · (6554) Periph Vasc Undiv · (6554) Peripheral Vascular Undivided · (6582) Visions 035 · (7881) US Und · (7881) Ultrasound Und · (8964) Stellarex · (9281) Turbo Elite · (9285) AngioSculpt PV · (9520) IGT Devices Und · (9520) IGT Devices Undivided · (BH4) IGT Devices Undivided · (BR5) Peripheral IVUS · (BS1) Peripheral Vascular Undivided · 6MMX22MMX120CM · ABRE · ALPHAVAC · AMPLATZER · AMPLATZER Occluders · AMPLATZER TORQVUE 45 X 45 · AMPLATZER Vascular Plug and Accs · ANGIOJET · AURYON LASER SYSTEM 100-120 VAC · AlphaVac · AngioSeal · Architect system · Armada 35 percutaneous catheter · Asahi Fielder coronary guide wire · Auryon Laser System 100-120 Vac · BioMimics 3D Vascular Stent System · CARDIVA VASCADE MVP VVCS 6-12F · CERTUS 140 MICROWAVE ABLATION SYSTEM · CONCERTOTM · COOK · COOK MEDICAL ACCESSORIES · COOK MEDICAL ANGIOPLASTY · COOK MEDICAL FILTERS · COOK MEDICAL IAA · COOK MEDICAL LIVER ACCESS · COOK MEDICAL PERIPHERAL INTERVENTION · COOK MEDICAL STENTS · COOK MEDICAL ZILVER PTX · Concerto · Cook Medical Embolization · Cook Medical Filters · Cook Medical Gunther Tulip · Cook Medical Interventional Radiology · Cook Medical Micropuncture · Cook Medical Peripheral Intervention · Cook Medical Stents · Cook Medical Zilver PTX · DIAMONDBACK PERIPHERAL · Diamondback Peripheral · Dragonfly OCT · ENDOPATH ETS Articulating Linear Cutter · ESPRIT · EXCLUDER AAA Endoprosthesis · Ellipsys · Ellipsys System · Emboshield NAV6 system · FLEXOR · FLOWTRIEVER CATHETER · Flexitouch Plus · FlowTriever · Fox Sv PTA catheter and Armada 14 percutaneous catheter and Viatrac 14 Plus peripheral catheter · GENERAL GUIDEWIRES · GENERAL METALLIC STENTS · GENERAL THERAPIES · GENERAL VASCULAR INTERVENTION · GENERAL GUIDEWIRES · GENERAL METALLIC STENTS · GENERAL VASCULAR INTERVENTION · GORE VIABAHN Endoprosthesis · GORE VIABAHN Endoprosthesis with Heparin · HawkOne · Hi-Torque Command guide wire · HydroPearl · ICAST COVERED STENT SYSTEM · IGT D Peripheral · IGT Devices Und · IGT_D Peripheral · IN.PACT AV · INTERLOCK · IVS - AVA · IVS - IVAS · IVS - NEW PRODUCT DEVELOPMENT · IVS - VERTEBRAL AUGMENTATION PRODUCTS · Indigo · Indigo System · JETI PERIPHERAL CATHETER · JETSTREAM · Kerecis Omega3 SurgiClose · LIMFLOW SYSTEM · LUTONIX Drug Coated Balloon · Lasers · MISSION · MetaCross · Mitra Clip system · NAVICROSS · OPTABLATE · OPTION · Omnilink Elite vascular stent system · PANTHERIS · PERCLOSE PROGLIDE · PERFORMER · PERIPHERAL VASCULAR · Palindrome · Penumbra Ruby Coil · Penumbra System · Perclose ProGlide suture mediated closure system · Peripheral Orbital Atherectomy System · Pounce Thrombectomy · Puraply · QUTENZA · ROSEN · RUBY Coil · Ranger · Rotarex · Ruby · S · SHOCKWAVE IVL SYSTEM WITH THE SHOCKWAVE C2 CORONARY IVL CATHETER · SPINEJACK · SUPERA · Serrantor · Shockwave IVL System with the Shockwave C2 Coronary IVL Catheter · Shockwave Medical L6 Intravascular Lithotripsy (IVL) Catheter · Smart Coil · Spectranetics Undiv · SpyGlass · SpyGlass Discover · Stellarex · Sublime 014 Rx PTA Balloon Dilatation Catheter · Supera peripheral stent system · THERAPIES · THERASPHERE-BIO · TORCON NB · TORNADO · TheraSphere Administration Set · Turbo Elite · Turbo Power · TurboHawk · US Und · VIATORR Endoprosthesis · VIATORR TIPS Endoprosthesis · VIATORR TIPS Endoprosthesis w/ Controlled Expansion · Vascular Closure Device · Vascular Lithotripsy · Viz.AI LVO · Xience Alpine cornary stent system · Xience V coronary stent system · ZILVER PTX · ZILVER VENA · Zilver PTX
Should you be concerned? Industry payments are disclosed through CMS Open Payments. Disclosure alone does not establish their purpose, legality, or effect on care. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
Geographic Context
Vascular & interventional radiology physicians in nearby ZIP areas
110
County median income
$81,797
Nearest hospital to ZIP centroid (approximate)
JESSE BROWN VA MEDICAL CENTER - VA CHICAGO HEALTHCARE SYSTEM
0.0 mi
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | NPPES snapshot; verify current record |
| Medicare Enrollment | ✓ PECOS | PECOS snapshot |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not included | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Madassery is a mixed practice specialist, with moderate Medicare volume, with 17 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Madassery experienced with sedation by physician, initial 15 minutes?
Based on Medicare claims data, Dr. Madassery performed 213 sedation by physician, initial 15 minutes services. These records cover Medicare fee-for-service activity, including eligible younger beneficiaries; they do not measure total practice volume or clinical quality.
Does Dr. Madassery receive payments from pharmaceutical companies?
Yes. Dr. Madassery received a total of $478,628 from 42 companies across 763 payment records. A record can group multiple payments. These transfers are publicly disclosed through CMS Open Payments. Disclosure alone does not establish their legality or effect on care. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Madassery's costs compare to other vascular & interventional radiology physicians in Chicago?
Dr. Madassery's average Medicare payment per service is $68. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Madassery) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating the presence of registry, enrollment, activity or payment records, not verified experience or clinical quality. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Source publication dates and the snapshots loaded on this site can differ. Rebuilding a page does not refresh its source records. Check the Medicare reporting year and the payment interval shown above; consult the linked official sources for newer releases and current registry details. See our data freshness policy →
Explore related providers
Same specialty & city
Vascular & Interventional Radiology Physicians in Chicago
Browse vascular & interventional radiology physicians in Chicago ranked by procedure volume and transparency data.
Highest volume
Top Vascular & Interventional Radiology Physicians in IL
Vascular & interventional radiology physicians ranked by total Medicare services performed statewide.
Industry payments
Pharma Payments to Vascular & Interventional Radiology Physicians in IL
Which IL vascular & interventional radiology physicians receive the most from drug and device companies.
By company
Penumbra, Inc. Payments to Doctors
See all physicians who received payments from Penumbra, Inc.
By company
Abbott Laboratories Payments to Doctors
See all physicians who received payments from Abbott Laboratories.
By company
Cook Incorporated Payments to Doctors
See all physicians who received payments from Cook Incorporated.
About this page
This page combines public CMS records with calculated summaries and explanatory procedure labels. These transformations are not verbatim federal records. Sources: NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology