An electrocardiogram records the electrical activity of your heart through electrodes placed on your chest, arms, and legs. The standard 12-lead resting EKG takes about 10 seconds to perform and generates an instantly readable tracing — yet a hospital can charge over $1,000 for this procedure. The test has not changed meaningfully in decades. The price gap is entirely a function of facility type and billing structure.
Types of EKGs and What They Cost
There are three main types of cardiac rhythm monitoring that fall under the broad "EKG" category. Each has a different purpose, duration, and price. Understanding which type you need is the first step to knowing what price range to expect.
1. Resting 12-Lead EKG — Most Common
The standard EKG. Twelve electrodes are placed on your body to record your heart's electrical activity during a brief period of rest. The test itself takes 10 seconds; the full visit including setup is 5–15 minutes. This is what most people mean when their doctor says "we'll do an EKG."
Used for: Initial cardiac evaluation, pre-operative clearance, chest pain workup, monitoring patients on QT-prolonging medications, routine annual exams in older patients or those with cardiac risk factors, detecting prior heart attacks, arrhythmia screening.
2. Ambulatory EKG (Holter Monitor) — 24 to 48 Hours
A wearable device that continuously records your heart rhythm for 24–48 hours (some models go up to 14 days). You wear electrode patches connected to a small recorder that clips to your belt or pocket. You keep a diary of symptoms so the reading cardiologist can correlate events with rhythm changes.
Used for: Palpitations, unexplained syncope (fainting), dizziness, atrial fibrillation evaluation, post-ablation monitoring, evaluating response to antiarrhythmic medications.
3. Event Monitor / Loop Recorder — Longer-Term Monitoring
For infrequent symptoms that a Holter might miss, event monitors record only when you trigger them (external event recorder) or automatically when the device detects an abnormal rhythm (continuous loop recorder). Implantable loop recorders (ILR) — a small device inserted under the skin — can monitor for up to 3 years.
Used for: Infrequent unexplained syncope, cryptogenic stroke workup (looking for occult atrial fibrillation), very infrequent palpitations that don't occur during a 48-hour Holter period.
EKG Cost by Type (2026)
| EKG Type | Doctor's Office / Outpatient | Hospital (List Price) |
|---|---|---|
| Resting 12-Lead EKG | $50–$200 | $400–$1,200 |
| Holter Monitor (24-hour) | $200–$450 | $500–$1,500 |
| Holter Monitor (48-hour) | $250–$550 | $600–$1,800 |
| Holter Monitor (14-day extended) | $400–$900 | $900–$2,500 |
| External Event Monitor (30-day) | $500–$1,200 | $1,000–$3,000 |
| Implantable Loop Recorder (ILR) | $3,000–$7,000 | $7,000–$15,000+ |
A resting EKG at your primary care physician's office typically runs $50–$150 cash — often less than your insurance copay if you haven't met your deductible. If your doctor just needs a baseline EKG, ask if it can be performed in the office rather than ordering it through a hospital outpatient department, where the same test can generate a $400–$800 bill.
Doctor's Office vs. Hospital: The Price Gap
The facility type where you have an EKG performed is the dominant cost driver. An EKG machine costs a few thousand dollars and is present in virtually every clinic. The procedure itself requires a medical assistant or nurse and takes minutes. The price difference between settings is entirely driven by hospital facility fees.
| Factor | Hospital Outpatient Dept. or ER | Doctor's Office / Outpatient Clinic |
|---|---|---|
| Typical Price (Resting EKG) | $400–$1,200 | $50–$200 |
| Facility Fee | Yes — often $200–$800 added | No separate facility fee |
| Equipment | Standard 12-lead EKG machine | Same standard 12-lead EKG machine |
| Result Speed | Immediate tracing, physician interprets | Immediate tracing, physician interprets |
| Reading Physician | Often billed separately by cardiologist | Usually included in visit or minimal add-on |
If you go to the ER for chest pain or palpitations, an EKG will be ordered as part of the workup — and that EKG will be billed at hospital rates as part of a much larger ER facility charge. You won't pay separately for just the EKG — it's bundled into the ER bill, which can be $1,500–$3,500+ for even a brief visit. For non-emergency cardiac monitoring, scheduling with your primary care physician or cardiologist is far less expensive.
Insurance Coverage for EKGs
EKGs are covered by virtually all commercial insurance plans and Medicare when ordered for a medical indication. The resting 12-lead EKG is one of the most commonly covered outpatient procedures with minimal prior authorization requirements.
When prior authorization is usually NOT required
- Resting 12-lead EKG for chest pain, shortness of breath, or new cardiac symptoms
- Pre-operative cardiac clearance EKG
- Routine EKG in a patient with known cardiac disease
- EKG to monitor response to cardiac medications
When prior authorization may be required
- Extended ambulatory monitoring (30-day event monitors)
- Implantable loop recorder (ILR) — almost always requires prior auth
- Some plans require pre-auth for 14-day Holter monitors
Medicare Coverage for EKGs
Medicare Part B covers a one-time screening EKG for new enrollees as part of the "Welcome to Medicare" preventive visit — this is typically $0 with no deductible or coinsurance. For medically necessary EKGs beyond that initial screening, Medicare covers them at 80% of the approved amount after the Part B deductible.
What you'll pay with Medicare
- Resting EKG at a doctor's office: Medicare-approved amount is typically $15–$35. Your 20% = $3–$7.
- Resting EKG at a hospital outpatient department: Higher approved amount. Your 20% may be $40–$150.
- Holter monitor (24-48 hour): Medicare-approved amount is typically $100–$250. Your 20% = $20–$50.
- Extended monitoring or ILR: Prior auth usually required; approved amounts vary significantly.
Medicare beneficiaries with supplement (Medigap) coverage often have their 20% coinsurance covered entirely, making most EKGs essentially free beyond the Part B deductible.
What an EKG Can (and Can't) Detect
Understanding what an EKG actually measures helps set appropriate expectations. It is a powerful, fast, inexpensive screening tool — but it has real limitations.
What an EKG CAN detect
- Arrhythmias: Atrial fibrillation, atrial flutter, supraventricular tachycardia, ventricular tachycardia, heart block, bundle branch blocks
- Prior heart attacks: Old myocardial infarctions leave characteristic changes in the EKG tracing (Q waves, ST changes)
- Active ischemia: During an active heart attack, ST-segment elevation or depression can indicate which artery is involved
- Electrolyte abnormalities: Severely abnormal potassium or calcium levels can produce distinctive EKG patterns
- Drug toxicity: QT prolongation from certain medications
- Structural changes: Left or right ventricular hypertrophy patterns
What an EKG CANNOT detect
- Coronary artery blockages (CAD) — requires stress testing or catheterization
- Heart valve problems — requires echocardiogram
- Intermittent arrhythmias if they're not occurring during the recording
- Heart failure (ejection fraction) — requires echocardiogram
- Pericarditis or effusion definitively — echocardiogram is needed
A normal resting EKG does not rule out significant heart disease. Patients with severe coronary artery disease can have completely normal resting EKGs. If your doctor is concerned about coronary artery disease specifically, an EKG alone is insufficient — a stress test or echocardiogram will be needed.
EKG vs. Echocardiogram vs. Stress Test: Which Do You Need?
- EKG ($50–$300): Records electrical activity. Fast, cheap, available everywhere. Best for arrhythmia screening, pre-op clearance, detecting acute cardiac events in the ER. Cannot assess heart structure, blood flow, or valve function.
- Echocardiogram ($300–$6,000): Ultrasound of the heart. Assesses valves, wall motion, ejection fraction, pericardium. The most comprehensive non-invasive structural cardiac test. Requires cardiac sonographer and physician interpretation.
- Stress Test ($300–$5,000): Evaluates for coronary artery disease by stressing the heart during exercise or pharmacologic challenge. Usually starts with an EKG (stress EKG), may add echo or nuclear imaging for more specificity.
Find EKG Prices Near You
Compare EKG prices at facilities across the country — doctor's offices vs. hospital outpatient departments, with real price transparency data from 6,500+ facilities.
Compare EKG Prices →How to Lower Your EKG Cost
1. Have routine EKGs done in your doctor's office
For any non-emergency EKG, ask your physician to perform it in the office rather than sending you to a hospital imaging department. The test is identical; the bill is dramatically different.
2. Ask about cash pricing at urgent care
Many urgent care centers offer resting EKGs for $60–$150 cash, which is often less than what you'd pay with insurance at a hospital. For routine screening EKGs without active symptoms, this can be an excellent option.
3. Understand the Holter billing structure
Holter monitor billing typically includes two components: the technical fee (equipment and data recording) and the professional fee (physician interpretation). Confirm both are covered and that you're using an in-network monitoring service. Some cardiologists use third-party monitoring companies that may be out of network.
4. Use price transparency data
Federal rules require hospitals to publish their EKG prices. Our database aggregates data across 6,500+ facilities from 5 billion+ pricing data points — allowing you to compare real prices in your market before scheduling.
Related Cardiac Guides
An EKG is often just the first step in a cardiac workup. If your EKG raises concerns, your cardiologist may order additional testing. See our related guides:
- Cardiac Stress Test Cost Guide — What a stress test costs and when it's needed
- Echocardiogram Cost Guide — TTE vs. TEE vs. stress echo pricing
- Cardiac Catheterization Cost Guide — Diagnostic cath pricing
The Bottom Line
A resting EKG is a fast, simple, inexpensive test — but hospital billing makes it appear expensive. The same 10-second recording that costs $50–$100 at your primary care office can generate a $400–$1,200 hospital bill. For non-emergency EKGs, always ask that the test be performed in the physician's office rather than at a hospital outpatient department. For ambulatory monitoring (Holter), confirm whether the monitoring service used is in-network and understand the two-part billing structure. Use price transparency data to compare costs before you schedule.