DR. MARK BLUM

Dr. Mark Blum is a board certified cardiologist and Fellow of the American College of Cardiology. He has practiced in Morristown, New Jersey for the past 27 years and is a full attending physician at Morristown Memorial Hospital, the major heart hospital in the state. He also served as the director of the cardiac catheterization laboratory.

Individual patient care with compassion remains the cornerstone of Dr. Blum’s approach. With ongoing dedication to providing the best medical attention available, his patients benefit from his devotion.
Dr. Blum is also active in clinical research, which has helped provide his patients with access to new medications and technology long before they are available to the general public. Early work in coronary stent research, radiation delivery systems to treat heart disease and electromagnetic cardiac imaging systems have led to major clinical advances in the field of interventional cardiology.

Dr. Blum graduated from the Mt. Sinai Medical School in New York and did his residency and cardiology training at the Mt. Sinai Hospital. Moving to New Jersey in 1988, he underwent further specialty training in interventional cardiology at the Beth Israel Medical Center in Newark, before moving to Morristown with the introduction of the heart surgery program in 1989. Dr. Blum is an Assistant Clinical Professor of Medicine at Mount Sinai Hospital in New York City.

Recognition of the above by his peers and patients have led to his being listed in the Castle Connolly Guide to Top Doctors in the New York Metro Area and being cited in the Top Physicians in America by the Consumer’s Research Council of America. Recently he was cited in New Jersey Magazine as a “best doctor” in the state. 

DR. JOHN COSMI

Dr. John Cosmi is board certified in interventional cardiology, general cardiology, and internal medicine. A native of Wayne, New Jersey, he pursued his undergraduate studies at Rutgers College in New Brunswick, where he majored in classics and biology, graduating with honors and being elected to Phi Beta Kappa. He attended New Jersey Medical School in Newark, where he was a recipient of numerous scholarships and was elected to Alpha Omega Alpha. Dr. Cosmi then completed his residency in internal medicine at New York University Medical Center and Bellevue Hospital in New York City, after which he was chosen to serve as chief medical resident.

Dr. Cosmi continued at NYU for cardiology fellowship, where he was elected fellow of the year twice and authored several scientific papers in the fields of echocardiography and myocardial infarction. He then completed an interventional cardiology fellowship at NYU and received board certification in both general cardiology and interventional cardiology. Dr. Cosmi practices both general and interventional cardiology at Morristown Memorial Hospital. He has special interests in preventive cardiology and coronary artery disease. 

DR. DAVID IRA FREILICH

Dr. David Ira Freilich is board certified in cardiovascular disease, echocardiography, and nuclear cardiology and is a Fellow of the American College of Cardiology. He has been in private practice in Morristown, New Jersey, for the past 25 years. Patient care is his primary focus, and he is committed to providing state-of-the-art care to his patients, with an emphasis on excellent communication, patient education, and ease of access.

Dr. Freilich’s expertise in non-invasive cardiology—which encompasses nuclear cardiology, echocardiography, transesophageal echo and stress-echo—is unsurpassed in the Morristown area. He has also published numerous research articles and abstracts on multiple topics, including physical chemistry, clinical pharmacology, and heart failure.

Dr. Freilich has been acknowledged by his peers as a leading physician and has been included in Best Doctors, Guide to America’s Top Physicians, and Guide to America’s Top Cardiologists. He has also received accolades for his resident and medical student education at Morristown Memorial Hospital, a major teaching affiliate of the Jefferson School of Medicine.

Dr. Freilich attended Columbia College of Physicians and Surgeons, after completing his major in chemistry in only three years at Brooklyn College of CUNY. He was awarded an honorary Jonas Salk Scholarship for medical research by an undergraduate at CUNY, as well as the prestigious New York Regent’s Scholarship in medicine, awarded to the top fifty scorers on the MCAT in New York State. Both his residency in internal medicine and his fellowship in cardiology were completed at Mount Sinai Medical Center. He then stayed on to practice cardiology at Mount Sinai Hospital in New York until he moved to Morristown in 1991. 

DR. LEONID MANDEL

Dr. Leonid Mandel is board certified in interventional cardiology, general cardiology, internal medicine, echocardiography, nuclear cardiology. Having such broad expertise allows him to diagnose and treat all aspects of cardiac disease. He particularly enjoys procedural aspects of cardiology, including coronary interventions. Dr. Mandel is involved with the Heart Team and participates in percutaneous valve disease treatment.

A key tenet of Dr. Mandel’s philosophy of care is to take a more global view of a patient’s health and to help patients understand how their overall wellness impacts their cardiovascular health. He guides patients to optimal health outcomes by creating personalized care plans rather than taking the “one-size-fits-all” approach.

He received his undergraduate degree from Hofstra University with a major in philosophy and a minor in biology. He graduated Ross University School of Medicine with Highest Honors, receiving a Distinguished Scholar award and maintaining placement on the Dean’s List. He completed residency training at University of Connecticut School of Medicine, followed by Advanced Heart Failure fellowship at St. Francis Hospital and Medical Center. He finished a fellowship in Cardiology with an additional year of Interventional Cardiology at Jefferson Medical College program at Christiana Care Health System in Newark, Delaware, and entered cardiology practice in 2012.

Dr. Leonid Mandel grew up in Queens, New York, and is fluent in Russian.