Medicare Enrolled

Dr. Avi Mazumdar, MD

Neurology · Winfield, IL
Practice pattern: Interventional Cardiology — Practice focused on catheter-based cardiac procedures
Low-engagement
25 N WINFIELD RD, Winfield, IL 60190
6309332113
In practice since 2006 (19 years)
NPI: 1760547889 verify on NPPES ↗
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. Mazumdar 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. Mazumdar? Request a correction or review of any data shown here. Provider portal →

What this data tells you about Dr. Mazumdar

Dr. Avi Mazumdar is a neurology specialist in Winfield, IL, with 19 years of NPI registration. Based on federal Medicare data, Dr. Mazumdar performed 255 Medicare services across 243 unique beneficiaries.

Between the years covered by Open Payments, Dr. Mazumdar received a total of $3,983 from 9 pharmaceutical and/or device companies across 34 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in neurology. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.

The Data Coverage level for Dr. Mazumdar 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.

✓ 19 years in practice ▲ 255 Medicare services $3,983 industry payments

Medicare Practice Summary

Medicare Utilization ↗
255
Medicare services
Bottom 30% in IL for neurology
Lower Medicare volume may reflect subspecialty focus, hospital-based work, or a higher share of non-Medicare patients.
243
Unique beneficiaries
$98
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~13 Medicare services per year of practice

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
CT scan of head blood vessels with contrast
A CT scan that uses contrast dye to create detailed images of the blood vessels in the head.
 35 $70 $262
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.
 30 $12 $47
MRI of head blood vessels without contrast
An MRI scan that creates detailed images of the blood vessels in the head without using contrast dye.
 28 $45 $180
Office visit, established patient (30-39 min)
A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition.
 28 $99 $194
3D radiographic procedure with computerized image postprocessing
A radiographic imaging procedure that creates three-dimensional images using computerized processing of the captured data.
 21 $32 $118
Hospital follow-up visit, low complexity
Follow-up hospital visit for an established patient with straightforward or low-level medical decision making. The visit requires at least 25 minutes of time spent on the day of service.
 19 $42 $102
MRI of neck blood vessels with and without contrast
This procedure uses magnetic resonance imaging to create detailed pictures of the blood vessels in the neck. Images are taken both before and after the administration of a contrast dye to enhance visibility.
 18 $72 $268
New patient office visit, complex (60-74 min) 17 $165 $384
Neck artery catheter insertion with radiology review
A tube is inserted into an artery in the neck for diagnostic or treatment purposes. A radiologist reviews the procedure.
 14 $297 $6,617
Telephone medical discussion, 21-30 minutes
A telephone conversation with a physician lasting between 21 and 30 minutes. This code covers the time spent discussing medical matters over the phone.
 12 $100 $250
Intracranial artery catheter insertion
A radiologist inserts a tube into an artery in the brain for diagnostic or treatment purposes.
 11 $266 $7,370
Brain artery catheterization
A tube is inserted into an artery in the brain for diagnosis or treatment, with review by a radiologist.
 11 $243 $6,867
Arterial catheter insertion in neck
A tube is inserted into an artery in the neck for diagnostic or treatment purposes. A radiologist reviews the procedure.
 11 $135 $1,059
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. A higher procedure volume generally indicates more experience with that procedure.
18.4% high complexity
43.5% medium
38.0% routine

Industry Payment Transparency

Open Payments through 2024 ↗
$3,983
Total received (2018-2024)
Avg $569/year across 7 years
Top 35% in IL for neurology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
9
Companies
34
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →

Payment profile

Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.

Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$3,983 (100.0%)

Payment trend by year

Annual totals from pharmaceutical and medical device companies.

2024
$479
2023
$1,971
2022
$104
2021
$177
2020
$256
2019
$295
2018
$702

Payments by company (2024)

Consulting
Speaking
Meals & Travel
Research
Penumbra, Inc.
$288
MicroVention, Inc.
$190
Top 3 companies account for 100.0% of 2024 payments
All-time payments by company (2018-2024) ›
Relievant Medsystems, Inc.
$1,834
Penumbra, Inc.
$578
MicroVention, Inc.
$447
Medtronic USA, Inc.
$418
Stryker Corporation
$222
Medtronic, Inc.
$178
DePuy Synthes Sales Inc.
$165
UCB, Inc.
$115
PORTOLA PHARMACEUTICALS, INC.
$26
Top 3 companies account for 71.8% of all-time payments
Associated products mentioned in payments ›
3D Revascularization · ANDEXXA · Axium · CODMAN MALIS · HydroSoft 3D Coil · Intracept · KYPHON Balloon Kyphoplasty · OSTEOCOOL RF ABLATION · OSTEOCOOL RF ABLATION SYSTEM · POD · REAL System · RED 72 · Rist-5F · SPINEJACK · SURPASS · Solitaire · WEB Aneurysm Embolization System · WEB DETACHMENT CONTROLLER
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. 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 →

Most payments (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.

Looking for a neurology specialist in Winfield?
Compare neurologists in the Winfield area by procedure volume, costs, and industry payment transparency.
Browse neurologists nearby

Geographic Context

Neurologists within 10 mi
421
Per 100K population
45.4
County median income
$110,502
Nearest hospital
NORTHWESTERN MEDICINE CENTRAL DUPAGE HOSPITAL
0.0 mi

Data Sources

Provider Registry ✓ NPPES Weekly updates
Medicare Enrollment ✓ PECOS Monthly updates
Practice Data ✓ Medicare Util. Annual (CY lag)
Industry Payments ✓ Open Payments CY 2024
Disciplinary History — Not public 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. Mazumdar is an interventional cardiology specialist, with moderate Medicare volume, with low-engagement industry engagement, with 19 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. Mazumdar experienced with ct scan of head blood vessels with contrast?
Based on Medicare claims data, Dr. Mazumdar performed 35 ct scan of head blood vessels with contrast services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Mazumdar receive payments from pharmaceutical companies?
Yes. Dr. Mazumdar received a total of $3,983 from 9 companies across 34 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. 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. Mazumdar's costs compare to other neurologists in Winfield?
Dr. Mazumdar's average Medicare payment per service is $98. 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. Mazumdar) 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 a long track record of practice, Medicare participation, and industry disclosure. 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?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →

Explore related providers

Specialty guide
Understanding Neurology
Common procedures, typical costs, and what industry payments mean in neurology.
Same specialty & city
Neurologists in Winfield
Browse neurologists in Winfield ranked by procedure volume and transparency data.
Highest volume
Top Neurologists in IL
Neurologists ranked by total Medicare services performed statewide.
Industry payments
Pharma Payments to Neurologists in IL
Which IL neurologists receive the most from drug and device companies.
By company
Relievant Medsystems, Inc. Payments to Doctors
See all physicians who received payments from Relievant Medsystems, Inc.
By company
Penumbra, Inc. Payments to Doctors
See all physicians who received payments from Penumbra, Inc.
By company
MicroVention, Inc. Payments to Doctors
See all physicians who received payments from MicroVention, Inc.
About this page

All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): 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

Data Disclaimer — Data sourced from the Centers for Medicare & Medicaid Services (CMS): National Plan and Provider Enumeration System (NPPES), Open Payments program, Medicare Provider Utilization and Payment Data, and Provider Enrollment & Certification data (PECOS). Published under the Freedom of Information Act (FOIA). This website is not affiliated with, endorsed by, or authorized by CMS, HHS, or the U.S. Government. Data may contain errors as reported to CMS by providers and reporting entities. Payments from industry are legal and do not indicate wrongdoing. Medicare data reflects only patients aged 65+ or those with qualifying disabilities. For corrections, contact CMS directly. This information does not constitute medical advice and should not be used as the sole basis for choosing a healthcare provider. Procedure descriptions use plain language and do not reference CPT® codes, which are copyrighted by the American Medical Association. Full methodology → · Report a data error → · Privacy policy →