Medicare Enrolled
Dr. Hong Jun Yun, MD
Internal Medicine · Palos Park, IL
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
Speaking/Promotional
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. Yun 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. Yun
Dr. Hong Jun Yun is an internal medicine specialist in Palos Park, IL, with 16 years of NPI registration. Based on federal Medicare data, Dr. Yun performed 4,424 Medicare services across 3,209 unique beneficiaries.
Between the years covered by Open Payments, Dr. Yun received a total of $80,035 from 25 pharmaceutical and/or device companies across 288 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in internal medicine. The majority of payments are for speaking programs and promotional activities, reflecting participation in industry-sponsored events. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Yun 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.
✓ 16 years in practice
▲ Top 5% volume in IL
$80,035 industry payments
Medicare Practice Summary
Medicare Utilization ↗4,424
Medicare services
Top 5% in IL for internal medicine
3,209
Unique beneficiaries
$94
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~276 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 |
|---|---|---|---|
| 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. |
924 | $65 | $156 |
| 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. |
890 | $97 | $164 |
| 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. |
251 | $11 | $41 |
| Lipid panel (cholesterol and triglycerides) A blood test that measures cholesterol and triglyceride levels. |
213 | $13 | $54 |
| Office visit, established patient (10-19 min) An office visit for an existing patient lasting 10 to 19 minutes. The visit involves medical evaluation and management of the patient's condition. |
212 | $40 | $75 |
| 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. |
191 | $106 | $300 |
| Prothrombin time test (blood clotting) A laboratory test that measures how long it takes for blood to clot. This procedure evaluates the body's coagulation process. |
154 | $4 | $18 |
| 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. |
153 | $11 | $103 |
| Anticoagulant management for warfarin Management of anticoagulant therapy for a patient taking warfarin. This service involves monitoring and adjusting the medication regimen. |
152 | $9 | $38 |
| Regadenoson injection (Lexiscan) for heart stress test An injection of regadenoson, a medication used to stress the heart during diagnostic testing. |
140 | $41 | $100 |
| Cardiac catheterization | 135 | $199 | $1,350 |
| Hospital follow-up visit, high complexity Subsequent hospital inpatient or observation care for an existing patient involving high-level medical decision making, with at least 50 minutes total time on the date of the encounter. |
128 | $98 | $224 |
| 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. |
77 | $464 | $3,500 |
| 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. |
67 | $118 | $271 |
| Technetium Tc-99m tetrofosmin diagnostic injection A diagnostic injection of Technetium Tc-99m tetrofosmin used for imaging studies. |
64 | $222 | $300 |
| 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. |
58 | $70 | $105 |
| 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. |
54 | $143 | $425 |
| 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. |
52 | $53 | $450 |
| Exercise or drug-induced heart stress test with ECG A heart stress test performed using exercise or medication while an electrocardiogram is monitored under physician supervision. |
40 | $17 | $115 |
| 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. |
40 | $11 | $160 |
| Rubidium rb-82, diagnostic, per study dose, up to 60 millicuries | 40 | $418 | $600 |
| 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. |
38 | $634 | $9,000 |
| Echocardiogram with color Doppler An ultrasound of the heart that uses color imaging to visualize blood flow, measure flow rate, and assess valve function. |
38 | $2 | $100 |
| Echocardiogram, transthoracic An ultrasound test that uses sound waves to create images of the heart's blood flow, valves, and chambers. |
34 | $14 | $150 |
| 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. |
33 | $17 | $125 |
| 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. |
32 | $363 | $2,121 |
| Transesophageal echocardiogram An ultrasound of the heart performed using a probe inserted into the esophagus to obtain detailed images of heart structures and function. |
32 | $86 | $650 |
| Insertion of tube in right and left heart chambers and coronary artery for diagnosis with review by radiologist | 27 | $299 | $1,500 |
| Continuous ECG monitoring, up to 30 days Continuous heart rhythm monitoring for up to 30 days, including professional review and reporting of the results. |
19 | $21 | $120 |
| 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. |
17 | $704 | $2,865 |
| Echocardiogram, transthoracic An ultrasound of the heart that uses color to show blood flow, rate, direction, and valve function. |
16 | $159 | $900 |
| Coronary angiography A procedure to insert a tube into a coronary artery to capture diagnostic images of the heart's blood vessels. |
16 | $180 | $1,000 |
| Right heart catheterization with coronary angiography A procedure to insert a tube into the right side of the heart and coronary arteries to gather diagnostic information, with review by a radiologist. |
16 | $259 | $1,250 |
| Intravascular ultrasound of heart vessel, initial An ultrasound procedure used to evaluate a blood vessel within the heart during a diagnostic or treatment procedure. |
16 | $59 | $370 |
| Insertion of tube in left lower heart chamber, coronary artery and bypass graft for diagnosis with review by radiologist | 15 | $215 | $1,400 |
| Nuclear stress test with CT scan A nuclear medicine imaging test that evaluates blood flow in the heart muscle at rest and during stress, performed alongside a concurrent CT scan. |
14 | $1,274 | $5,255 |
| 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. |
14 | $66 | $158 |
| Wireless pressure sensor insertion into lung artery A wireless pressure sensor is placed into the lung artery using a tube. A radiologist reviews the procedure. |
12 | $265 | $1,170 |
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.
7.5% high complexity
10.6% medium
81.9% routine
Industry Payment Transparency
Open Payments through 2024 ↗$80,035
Total received (2018-2024)
Avg $11,434/year across 7 years
Top 1% in IL for internal medicine
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
25
Companies
288
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.
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$47,874 (59.8%)
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$27,133 (33.9%)
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$5,028 (6.3%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$16,093
2023
$20,128
2022
$30,102
2021
$5,730
2020
$276
2019
$4,638
2018
$3,067
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Medtronic, Inc.
$15,285
Edwards Lifesciences Corporation
$450
CARDIVA MEDICAL, INC.
$159
Boston Scientific Corporation
$57
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$42
SCPHARMACEUTICALS INC.
$40
E.R. Squibb & Sons, L.L.C.
$30
Janssen Pharmaceuticals, Inc
$16
Novartis Pharmaceuticals Corporation
$14
Top 3 companies account for 98.8% of 2024 payments
All-time payments by company (2018-2024) ›
Medtronic, Inc.
$63,146
Edwards Lifesciences Corporation
$4,896
Medtronic Vascular, Inc.
$4,608
CathWorks, Inc.
$3,146
Boston Scientific Corporation
$2,329
W. L. Gore & Associates, Inc.
$286
Abbott Laboratories
$282
Shockwave Medical, Inc
$176
Cardiovascular Systems Inc.
$175
JenaValve Technology, Inc.
$162
CARDIVA MEDICAL, INC.
$159
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$97
Novartis Pharmaceuticals Corporation
$87
AstraZeneca Pharmaceuticals LP
$80
SCPHARMACEUTICALS INC.
$77
E.R. Squibb & Sons, L.L.C.
$59
BOSTON SCIENTIFIC CORPORATION
$56
Janssen Pharmaceuticals, Inc
$56
Kiniksa Pharmaceuticals, Ltd.
$41
Novo Nordisk Inc
$25
Teleflex LLC
$24
Kestra Medical Technology Services, Inc.
$20
PFIZER INC.
$16
Merck Sharp & Dohme LLC
$16
Terumo Medical Corporation
$15
Top 3 companies account for 90.8% of all-time payments
Associated products mentioned in payments ›
3F · AVVIGO Guidance System · Arcalyst · Assure WCD · BRILINTA · CAMZYOS · CARDIOFORM Septal Occluder · CARDIOMEMS · COREVALVE EVOLUT R · CardioMEMS HF System · CoreValve Evolut · Coronary Orbital Atherectomy System · Diamondback Coronary · EDWARDS SAPIEN 3 TRANSCATHETER HEART VALVE (THV) · ELIQUIS · ENTRESTO · EVOQUE · Edwards SAPIEN 3 Transcatheter Heart Valve · Edwards SAPIEN 3 Ultra Transcatheter Heart Valve · FARXIGA · FFRANGIO · FFRangio · FUROSCIX · GENERAL STRUCTURAL HEART · GUIDELINER · General - Therapies · JenaValve Pericardial TAVR System · LEQVIO · Launcher · LifeVest · ONYX FRONTIER · OPTICROSS · OPTIS · OPTOWIRE · Ozempic · PASCAL · RESOLUTE ONYX · ROTAPRO · Resolute · SAPIEN 3 Ultra RESILIA · SAVVYWIRE · SHOCKWAVE IVL SYSTEM WITH THE SHOCKWAVE C2 CORONARY IVL CATHETER · SYMPLICITY G3 · SYNERGY · TELESCOPE · VADO · VERQUVO · XARELTO
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 →
The majority of payments (60%) are for speaking programs and promotional activities, which reflect participation in industry-sponsored educational or marketing events. This is common in internal medicine and does not inherently indicate bias, but patients may wish to be aware. Total industry engagement is in the top 1% for internal medicine in IL.
Geographic Context
Internal medicine physicians within 10 mi
5,412
Per 100K population
104.4
County median income
$81,797
Nearest hospital
PALOS COMMUNITY HOSPITAL
3.9 mi
3.9 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. Yun is a clinical cardiology specialist, with above-average Medicare volume (top 5% in IL), with speaking/promotional industry engagement in the top 1% of IL peers, with 16 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. Yun experienced with hospital follow-up visit, moderate complexity?
Based on Medicare claims data, Dr. Yun performed 924 hospital follow-up visit, moderate complexity 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. Yun receive payments from pharmaceutical companies?
Yes. Dr. Yun received a total of $80,035 from 25 companies across 288 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. Yun's costs compare to other internal medicine physicians in Palos Park?
Dr. Yun's average Medicare payment per service is $94. 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. Yun) 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 →
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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.
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