Cardiology
Diagnosis and treatment of heart disease, rhythm disorders, and cardiovascular conditions
Cardiology is the specialty focused on diagnosis and treatment of heart disease, rhythm disorders, and cardiovascular conditions. OpenDoc separates it into focused subspecialty paths so patients can start in the right care lane before they book. Transparent pricing on this page currently ranges from $75 to $7,000 across 20 common visit types. Cardiology encompasses the diagnosis and treatment of conditions affecting the heart and vascular system, from routine heart disease screening to complex interventional procedures. Heart disease remains the #1 cause of death in the United States, responsible for 1 in every 5 deaths. OpenDoc provides transparent cash pricing on cardiac evaluations, imaging, and diagnostics starting at $75 — enabling patients to access critical heart care without insurance gatekeeping or prior authorization delays.
Not sure where to start? Begin with General Cardiology Evaluation and OpenDoc will keep the specialty, visit type, and price aligned before anything happens.
Cash-pay context
Why pricing transparency matters here
Cardiac diagnostic testing is one of the most marked-up areas in hospital-based medicine — a hospital echocardiogram can be billed at $2,000-3,000 versus $200-500 in an office setting. Cash-pay pricing on OpenDoc ensures you get the same board-certified interpretation at a fraction of the cost, with no surprise facility fees or balance bills.
Subspecialties
Choose the right path inside Cardiology
Each card represents a distinct focused path inside the specialty. This is the big shift from the old browse page: the user gets routing context before they ever hit a provider profile.
Advanced Heart Failure & Transplant
Subspecialists in advanced heart failure manage end-stage heart disease with advanced therapies including ventricular assist devices (LVADs), heart transplant evaluation, and complex medical regimens. This ACGME fellowship-trained subspecialty focuses on patients who have progressed beyond standard heart failure treatments.
Electrophysiology
Electrophysiologists specialize in the heart's electrical system, diagnosing and treating arrhythmias through catheter ablation, pacemaker and defibrillator implantation, and advanced rhythm monitoring. This ACGME fellowship builds on general cardiology with 1-2 additional years of specialized training.
Interventional Cardiology
Interventional cardiologists perform catheter-based procedures to diagnose and treat coronary artery disease, peripheral vascular disease, and structural heart conditions. This ACGME fellowship provides training in coronary stenting, balloon angioplasty, and transcatheter valve procedures.
When you usually need this specialty
Common concerns that lead patients into Cardiology
Coronary artery disease and chest pain
Atrial fibrillation and heart rhythm disorders
Congestive heart failure
Hypertension (high blood pressure)
Heart valve disease (aortic stenosis, mitral regurgitation)
Palpitations and unexplained rapid heartbeat
Shortness of breath on exertion
Peripheral artery disease
Syncope (fainting) and near-syncope
Heart murmur evaluation
Common care paths
How Cardiology is organized on OpenDoc
Cardiology Consultation
Cardiology Consultation is a common cardiology entry point on OpenDoc with transparent pricing before booking.
Electrocardiogram (EKG/ECG)
Electrocardiogram (EKG/ECG) is a diagnostic cardiology service used to clarify the condition before treatment decisions are made.
Transthoracic Echocardiogram
Transthoracic Echocardiogram is a common cardiology entry point on OpenDoc with transparent pricing before booking.
Exercise Stress Test (Treadmill)
Exercise Stress Test (Treadmill) is a diagnostic cardiology service used to clarify the condition before treatment decisions are made.
Nuclear Stress Test
Nuclear Stress Test is a common cardiology entry point on OpenDoc with transparent pricing before booking.
Stress Echocardiogram
Stress Echocardiogram is a common cardiology entry point on OpenDoc with transparent pricing before booking.
Routing guide
How the subspecialties differ
| Care path | Choose this route when… | Why OpenDoc separates it |
|---|---|---|
| Electrophysiology | Irregular heartbeat or palpitations | EP specialists diagnose the exact arrhythmia mechanism and offer catheter ablation for definitive cure |
| Interventional Cardiology | Chest pain with suspected blocked arteries | Interventional cardiologists perform cardiac catheterization and stenting to restore blood flow |
| Advanced Heart Failure & Transplant | Heart failure not responding to standard medications | Advanced HF specialists manage complex regimens, mechanical support devices, and transplant evaluation |
| Electrophysiology | Need for a pacemaker or defibrillator | EP specialists implant and manage all cardiac rhythm devices including pacemakers and ICDs |
| Interventional Cardiology | Severe aortic valve disease | Interventional cardiologists can evaluate for transcatheter aortic valve replacement (TAVR) |
| Advanced Heart Failure & Transplant | Worsening shortness of breath and fluid retention | Advanced HF specialists optimize diuretic strategies and evaluate for advanced therapies |
Common services & estimated pricing
Review common visit types, transparent cash-pay estimates, and how the care path changes before you move into provider selection.
| Service | Type | Duration | Estimated price |
|---|---|---|---|
| Cardiology Consultation Cardiology Consultation is a common cardiology entry point on OpenDoc with transparent pricing before booking. | Evaluation | 45 min | $200 – $400 |
| Electrocardiogram (EKG/ECG) Electrocardiogram (EKG/ECG) is a diagnostic cardiology service used to clarify the condition before treatment decisions are made. | Testing | 15 min | $75 – $150 |
| Transthoracic Echocardiogram Transthoracic Echocardiogram is a common cardiology entry point on OpenDoc with transparent pricing before booking. | Imaging | 45 min | $200 – $500 |
| Exercise Stress Test (Treadmill) Exercise Stress Test (Treadmill) is a diagnostic cardiology service used to clarify the condition before treatment decisions are made. | Testing | 60 min | $200 – $500 |
| Nuclear Stress Test Nuclear Stress Test is a common cardiology entry point on OpenDoc with transparent pricing before booking. | Imaging | 3 – 4 hours | $500 – $1,200 |
| Stress Echocardiogram Stress Echocardiogram is a common cardiology entry point on OpenDoc with transparent pricing before booking. | Imaging | 60 min | $400 – $800 |
| 24-Hour Holter Monitor 24-Hour Holter Monitor is a diagnostic cardiology service used to clarify the condition before treatment decisions are made. | Testing | Setup: 15 min, Wear: 24 hours | $150 – $350 |
| Extended Cardiac Monitor (7-30 day) Extended Cardiac Monitor (7-30 day) is a diagnostic cardiology service used to clarify the condition before treatment decisions are made. | Testing | Setup: 15 min | $200 – $500 |
| Cardiac Catheterization (diagnostic) Cardiac Catheterization (diagnostic) is a procedure-oriented cardiology service with transparent pricing shown before anything happens. | Procedure | 1 – 2 hours | $3,000 – $7,000 |
| Coronary Calcium Score CT Coronary Calcium Score CT is a common cardiology entry point on OpenDoc with transparent pricing before booking. | Imaging | 15 min | $75 – $200 |
| Pacemaker / ICD Interrogation Pacemaker / ICD Interrogation is a diagnostic cardiology service used to clarify the condition before treatment decisions are made. | Testing | 30 min | $100 – $250 |
| Carotid Ultrasound Carotid Ultrasound is a common cardiology entry point on OpenDoc with transparent pricing before booking. | Imaging | 30 min | $150 – $350 |
| Cardiovascular Risk Assessment Cardiovascular Risk Assessment is a screening-focused cardiology service for earlier detection, monitoring, or preventive care planning. | Screening | 30 min | $150 – $300 |
| Follow-Up Cardiology Visit Follow-Up Cardiology Visit is a common cardiology entry point on OpenDoc with transparent pricing before booking. | Evaluation | 20 min | $150 – $275 |
Pricing methodology: Pricing estimates are modeled from the current OpenDoc specialty taxonomy, visit archetypes, and transparent cash-pay assumptions. Posted provider pricing should be treated as the source of truth whenever it is available.
Last updated: April 8, 2026
Start here
General Cardiology Evaluation
Start with a general cardiology evaluation if you want the provider to confirm the right care path before you move deeper into the specialty.
Why subspecialty matters
Why OpenDoc separates these care paths instead of collapsing them
Focused training matters
Specialties often branch into narrower care paths. Seeing them clearly helps patients choose providers with training that actually matches the problem.
Prices match the care path
A sports medicine visit, a spine evaluation, and a tumor consult are not the same visit. OpenDoc keeps pricing attached to the path, not just the umbrella specialty.
Less guesswork before booking
Patients should understand the likely route before they see provider cards. That lowers false starts and makes the next step into provider search feel clearer.
Better provider fit
This page keeps specialty, subspecialty, common visit types, and price context aligned so users can move into provider selection with more confidence.
FAQ
Frequently asked questions
Local discovery
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