David Farrell Armstrong, DO

David Armstrong, D.O., F.A.C.C., is a non-invasive cardiologist and a Fellow of the American College of Cardiology. He has been a first author, and co-author of several journal articles, and abstracts within the field of cardiology. Additionally, he has presented this research at national conferences on multiple occasions.

Prior to joining Montclair Cardiology Group, Dr. Armstrong worked at Lenox Hill Hospital, and held an Assistant Professor of Cardiology appointment at the Zucker School of Medicine at Hofstra/Northwell. He worked extensively in the echocardiography laboratory, and served as a cardiology consultant for the Lenox Health Greenwich Village facility (New York City’s first freestanding emergency department).

He has a strong interest, and expertise in utilizing echocardiography to facilitate accurate, expedient cardiac diagnosis, and care. His patients appreciate the time he takes to listen to important details about their health history. He believes preventing disease is just as important as treating it. 

Dr. Armstrong specializes in the following areas: 

• Coronary artery disease
• Hypertension (High Blood Pressure)
• Heart Failure
• Preventive Cardiology
• Arrhythmias (Atrial Fibrillation, PVCs, etc.)
• Valvular Heart Disease
• Hyperlipidemia
• Cardiac Imaging (Echo, Nuclear cardiology, Stress testing, CT, MRI)
• Peripheral Arterial Disease
• Syncope & Dizziness Evaluation