About
Dr. Mark Blum is a board-certified cardiologist and Fellow of the American College of Cardiology. He trained at Mt. Sinai Medical School in New York and completed his residency and cardiology training at Mt. Sinai Hospital. He then pursued interventional cardiology fellowship at Beth Israel Medical Center in Newark before settling in Morristown in 1989. Dr. Blum also holds an appointment as Assistant Clinical Professor of Medicine at Mount Sinai Hospital in New York City.
He has practiced in Morristown for 27 years and serves as a full attending physician at Morristown Memorial Hospital, the state's major heart hospital. He previously directed the hospital's cardiac catheterization laboratory. Dr. Blum places individual patient care and compassion at the center of his practice. He actively participates in clinical research, including work on coronary stents, radiation delivery systems for heart disease, and electromagnetic cardiac imaging. Castle Connolly, the Consumer's Research Council of America, and New Jersey Magazine have all recognized him among top physicians.
Education & Training
Medical School
Mt. Sinai Medical School, New York
Residency
Internal Medicine and Cardiology, Mt. Sinai Hospital
Fellowship
Interventional Cardiology, Beth Israel Medical Center, Newark
Additional Training
Assistant Clinical Professor of Medicine at Mount Sinai Hospital, New York City
Certifications
Conditions Treated
Who is Dr. Blum right for?
Dr. Blum is a strong fit for patients seeking expert interventional cardiology care in Morristown. Adults managing coronary artery disease or complex heart conditions benefit from his decades of procedural experience. Patients who value a physician engaged in cutting-edge clinical research will find his practice particularly relevant. His compassion-centered approach suits those who want a physician who treats them as individuals.
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Frequently Asked Questions
Dr. Blum focuses on coronary artery disease and heart disease, with particular expertise in interventional cardiology. His clinical research background gives him early familiarity with emerging treatments and technologies in the field.
Yes. Dr. Blum holds board certification in cardiology and is a Fellow of the American College of Cardiology. He trained at Mt. Sinai Medical School and completed his interventional cardiology fellowship at Beth Israel Medical Center in Newark.
Dr. Blum is a full attending physician at Morristown Memorial Hospital, New Jersey's major heart hospital. He previously served as director of the cardiac catheterization laboratory there.
Yes. Dr. Blum actively engages in clinical research. His work has spanned coronary stent development, radiation delivery systems for treating heart disease, and electromagnetic cardiac imaging systems. That research has contributed to meaningful advances in interventional cardiology.
Dr. Blum has practiced in Morristown, New Jersey for 27 years. He arrived in 1989 following the introduction of the heart surgery program at Morristown Memorial Hospital.
Yes. Castle Connolly lists Dr. Blum in its Guide to Top Doctors in the New York Metro Area. The Consumer's Research Council of America cites him in Top Physicians in America, and New Jersey Magazine has named him among the state's best doctors.
Dr. Blum places individual patient care and compassion at the heart of his practice. He believes that thorough, attentive care tailored to each patient produces the best outcomes.
Doctor profile last updated April 11, 2026