Conditions Treated at The Heart Center at Mercy

The Heart Center at Mercy Medical Center in Baltimore, Maryland, diagnoses and treats a wide variety cardiovascular and heart diseases. Dr. Mark Applefeld, Director of The Heart Center at Mercy, leads a highly respected team of cardiologists who work with patients to understand their symptoms and develop effective treatment plans for conditions including coronary artery disease (CAD), heart attack and high blood pressure.

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The Heart Center at Mercy


Arrhythmias, disturbances of the regular heart rhythm, are treated at Mercy Medical Center in Baltimore.



Our doctors treat atherosclerosis, an abnormal condition in which fats, calcium and cell waste products form deposits on the inner walls of arteries.

Atrial Fibrillataion

Atrial Fibrillation

Atrial fibrillation, an irregular or rapid heartbeat, is treated by expert cardiologists at The Heart Center at Mercy.

The Heart Center at Mercy

Atrial Septal Defect

Cardiologists at Mercy Medical Center provide a full evaluation of atrial septal defect to determine the best plan of care.

The Heart Center at Mercy

Cardiovascular Disease

Our Board Certified cardiologists specialize in the diagnosis and treatment of cardiovascular disease.

The Heart Center at Mercy

Chest Pain

Our Board Certified cardiologists will conduct a thorough evaluation of your symptoms and will help you determine the most appropriate steps to address your chest pain.

The Heart Center at Mercy

Coronary Artery Disease

Coronary artery disease (CAD), the most common form of cardiovascular disease, is treated by our expert cardiologists.

High Cholesterol


Dyslipidemia, an abnormality in the amounts of lipids and lipoproteins in the blood, is treated by Mercy cardiologists in Baltimore.

Acute Coronary Syndrome and Heart Attack

Heart Attack

Mercy’s doctors are dedicated to thorough patient education, helping patients identify warning signs of a heart attack.

High Blood Pressure

High Blood Pressure

The cardiologists at The Heart Center at Mercy have extensive experience in the treatment of high blood pressure, also known as hypertension.

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Meet Our Doctors: Heart Center
The Heart Center at Mercy
Mark Applefeld, M.D.

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Dr. Mark Applefeld, Chief of the Division of Cardiology, helps patients with heart problems, including heart attack, heart murmur and heart disease.

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Patient Story:
Ethel - Mercy Patient

Ethel, at 93, still loves spending time with her grandchildren. A TAVR valve replacement helped her get back her quality of life.

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