Medicare Enrolled
Dr. Stephen Chen, DO
Cardiovascular Disease · Springfield, IL
Practice pattern: Cardiac Imaging
— Practice with significant diagnostic imaging and stress testing
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. Chen 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 →
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What this data tells you about Dr. Chen
Dr. Stephen Chen is a cardiovascular disease specialist in Springfield, IL, with 19 years of NPI registration. Based on federal Medicare data, Dr. Chen performed 6,468 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Chen received a total of $9,269 from 17 pharmaceutical and/or device companies across 175 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. Chen 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 of NPI registration
▲ Top 10% volume in IL
$9,269 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗6,468
Medicare services
Top 10% in IL for cardiovascular disease
Not available
Unique patients (not deduplicated)
$48
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 |
|---|---|---|---|
| EKG interpretation and report A standard electrocardiogram test that records the heart's electrical activity using at least 12 leads. The service includes a professional interpretation of the results and a written report. |
1,730 | $6 | $58 |
| Echocardiogram, transthoracic An ultrasound of the heart that uses color to show blood flow, rate, direction, and valve function. |
841 | $60 | $588 |
| Electrocardiogram (EKG), 12-lead A standard heart rhythm test using at least 12 leads to record electrical activity. A healthcare provider interprets the results and provides a written report. |
615 | $10 | $168 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
546 | $56 | $382 |
| 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. |
358 | $60 | $329 |
| 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. |
271 | $83 | $555 |
| Regadenoson injection (Lexiscan) for heart stress test An injection of regadenoson, a medication used to stress the heart during diagnostic testing. |
224 | $45 | $119 |
| 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. |
194 | $10 | $165 |
| Nuclear stress test of heart muscle A nuclear medicine imaging test that evaluates blood flow to the heart muscle at rest and during stress using a special camera. |
169 | $136 | $1,034 |
| Initial hospital admission, high complexity Initial hospital inpatient or observation care for a new patient involving high-level medical decision making, with at least 75 minutes total time on the date of the encounter. |
134 | $130 | $893 |
| Octafluoropropane microsphere injection An injection of octafluoropropane microspheres administered per milliliter. |
118 | $27 | $81 |
| Technetium Tc-99m tetrofosmin diagnostic injection A diagnostic injection of Technetium Tc-99m tetrofosmin used for imaging studies. |
115 | $62 | $130 |
| Cardiac catheterization | 112 | $189 | $3,579 |
| Exercise or drug-induced heart stress test with ECG A heart stress test performed using exercise or medication while monitoring the electrocardiogram under physician supervision and review. |
111 | $53 | $752 |
| Remote pacemaker/defibrillator monitoring, 90 days Remote evaluation of a pacemaker or implantable defibrillator system within 90 days of the last check. |
65 | $16 | $166 |
| Echocardiogram with color Doppler An ultrasound of the heart that uses color imaging to visualize blood flow, measure flow rate, and assess valve function. |
64 | $2 | $75 |
| Follow-up ultrasound of heart blood flow, valves and chambers An ultrasound exam that follows up on the heart's blood flow, valves, and chambers. It uses sound waves to create images of the heart's structure and function. |
56 | $6 | $39 |
| Transesophageal echocardiogram An ultrasound of the heart performed using a probe inserted into the esophagus to obtain detailed images of heart structures and function. |
55 | $82 | $712 |
| 2-day continuous ECG with professional review A two-day continuous electrocardiogram recording that includes a review by a healthcare professional. |
51 | $14 | $141 |
| Coronary stent placement A procedure to insert a stent into a coronary artery or its branch to keep it open, using balloon dilation during the process. |
48 | $451 | $3,376 |
| Follow-up heart ultrasound An ultrasound of the heart performed to monitor or reassess a previously identified condition or treatment progress. |
43 | $19 | $188 |
| Remote pacemaker monitoring, 90 days Remote assessment of a pacemaker system, including single, dual, multiple lead, or leadless devices, performed up to 90 days apart. |
42 | $23 | $183 |
| 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. |
42 | $118 | $741 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
39 | $6 | $6 |
| Continuous EKG monitoring review, 48-7 days Review and interpretation of continuous external EKG recordings lasting more than 48 hours up to 7 days. |
36 | $18 | $106 |
| Continuous ECG monitoring, up to 30 days Continuous heart rhythm monitoring for up to 30 days, including professional review and reporting of the results. |
35 | $19 | $137 |
| Continuous external EKG monitoring, 48 hours to 7 days This procedure involves recording the heart's electrical activity continuously using an external device for a period exceeding 48 hours but not more than 7 days. |
35 | $9 | $60 |
| Intravascular ultrasound of heart vessel, initial An ultrasound procedure used to evaluate a blood vessel within the heart during a diagnostic or treatment procedure. |
31 | $56 | $1,135 |
| 2-day continuous ECG monitoring A continuous electrocardiogram recording that captures heart activity over a 48-hour period. This test helps detect irregular heart rhythms or other cardiac issues that may not appear during a standard, short-term ECG. |
30 | $13 | $143 |
| Routine 12-lead electrocardiogram (ECG) A test that records the electrical activity of the heart using at least 12 leads to produce a tracing. |
28 | $5 | $110 |
| Exercise or drug-induced heart stress test with ECG A heart stress test performed using exercise or medication while monitoring the electrocardiogram, with physician review of the results. |
26 | $10 | $213 |
| Remote evaluation of implantable defibrillator system Remote assessment of a single, dual, or multiple lead implantable defibrillator system within 90 days of the previous evaluation. |
25 | $28 | $330 |
| Ultrasound of heart blood vessel or graft An ultrasound exam to evaluate blood flow in a heart blood vessel or graft, including a radiologist's review of the initial vessel. |
21 | $76 | $1,407 |
| Continuous ECG monitoring with transmission and review Continuous electrocardiogram monitoring for up to 30 days with symptom tracking. The data is transmitted and reviewed by a healthcare professional who provides a report. |
21 | $17 | $137 |
| Hospital discharge day management, 30 minutes or less This service covers the final day of hospital care when the patient is being discharged. It includes coordination of care and instructions for the patient within a time frame of 30 minutes or less. |
20 | $54 | $328 |
| 30-day continuous ECG with patient-triggered event transmission and review This procedure involves continuous electrocardiogram monitoring for up to 30 days, including the transmission of patient-triggered events. A healthcare professional reviews the data and provides a report. |
18 | $618 | $3,176 |
| Repair of left upper heart chamber with implant A surgical procedure to repair the left upper chamber of the heart using an implanted device, with review by a radiologist. |
16 | $629 | $4,326 |
| 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. |
13 | $94 | $624 |
| Exercise or drug-induced heart stress test with ECG A test that monitors the heart's electrical activity while the patient exercises or receives medication to increase heart rate. |
12 | $20 | $325 |
| Pacemaker programming, dual lead system Adjustment and configuration of a dual-lead pacemaker device to ensure proper operation and settings. |
12 | $58 | $303 |
| Stress echocardiogram An ultrasound of the heart performed while at rest and during exercise or drug-induced stress to evaluate heart function under different conditions. |
12 | $130 | $1,362 |
| Insertion of tube in left lower heart chamber, coronary artery and bypass graft for diagnosis with review by radiologist | 12 | $203 | $4,057 |
| Transcatheter aortic valve replacement via femoral artery A minimally invasive procedure to replace a diseased aortic heart valve using a catheter inserted through the skin and femoral artery. |
11 | $608 | $7,441 |
| Aminophylline injection, up to 250 mg Administration of aminophylline medication via injection for a dose of up to 250 mg. |
11 | $7 | $23 |
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.
18.9% high complexity
15.6% medium
65.4% routine
Industry Payment Transparency
Open Payments through 2024 ↗$9,269
Total received (2018-2024)
Avg $1,324/year across 7 years
Top 25% in IL for cardiovascular disease
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
17
Companies
175
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
$2,581
2023
$1,398
2022
$2,376
2021
$402
2020
$277
2019
$329
2018
$1,906
Payments by company (2024)
Abbott Laboratories
$1,556
Philips North America LLC
$644
ShockWave Medical, Inc
$156
Boston Scientific Corporation
$98
Amgen Inc.
$35
Novartis Pharmaceuticals Corporation
$28
Janssen Pharmaceuticals, Inc
$24
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$22
Medtronic, Inc.
$19
Top 3 companies account for 91.3% of 2024 payments
All-time payments by company (2018-2024) ›
Abbott Laboratories
$2,721
Edwards Lifesciences Corporation
$2,125
Boston Scientific Corporation
$1,441
Philips North America LLC
$644
Amgen Inc.
$454
Philips Electronics North America Corporation
$331
ShockWave Medical, Inc
$323
Janssen Pharmaceuticals, Inc
$267
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$188
AstraZeneca Pharmaceuticals LP
$166
Novartis Pharmaceuticals Corporation
$148
ABIOMED
$143
Regeneron Healthcare Solutions, Inc.
$128
Inari Medical, Inc.
$70
Medtronic, Inc.
$52
E.R. Squibb & Sons, L.L.C.
$51
Boehringer Ingelheim Pharmaceuticals, Inc.
$16
Top 3 companies account for 67.8% of all-time payments
Associated products mentioned in payments ›
(9520) IGT Devices Undivided · (9525) Intracardiac Und · AMPLATZER · AMPLATZER AMULET · AMPLATZER Occluders · AMPLATZER TALISMAN · BRILINTA · CAMZYOS · COREVALVE EVOLUT R · Corlanor · EDWARDS SAPIEN 3 TRANSCATHETER HEART VALVE (THV) · ELIQUIS · ENTRESTO · Edwards SAPIEN 3 Transcatheter Heart Valve · Edwards SAPIEN 3 Ultra Transcatheter Heart Valve · FARXIGA · FLOWTRIEVER CATHETER · Impella · JARDIANCE · LEQVIO · LINQ II · LifeVest · MITRACLIP · MitraClip System · PRALUENT · PRALUENT ALIROCUMAB INJECTION · Repatha · S · SHOCKWAVE IVL SYSTEM WITH THE SHOCKWAVE C2 CORONARY IVL CATHETER · Shockwave IVL System with the Shockwave C2 Coronary IVL Catheter · THORATEC HEARTMATE 3 LVAS IMPLANT KIT · WATCHMAN · WATCHMAN Access System · XARELTO
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
Cardiologists in nearby ZIP areas
28
County median income
$74,114
Nearest hospital to ZIP centroid (approximate)
MEMORIAL MEDICAL CENTER
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. Chen is a cardiac imaging specialist, with above-average Medicare volume (top 10% in IL), 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. Chen experienced with ekg interpretation and report?
Based on Medicare claims data, Dr. Chen performed 1,730 ekg interpretation and report 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. Chen receive payments from pharmaceutical companies?
Yes. Dr. Chen received a total of $9,269 from 17 companies across 175 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. Chen's costs compare to other cardiologists in Springfield?
Dr. Chen's average Medicare payment per service is $48. 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. Chen) 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 →
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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.
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