About
Dr. Leonid Mandel brings board certification in five disciplines: interventional cardiology, general cardiology, internal medicine, echocardiography, and nuclear cardiology. He grew up in Queens, New York, and earned his undergraduate degree from Hofstra University, majoring in philosophy with a minor in biology. He went on to Ross University School of Medicine, graduating with Highest Honors and receiving both the Distinguished Scholar award and consistent placement on the Dean's List.
Dr. Mandel completed his internal medicine residency at the University of Connecticut School of Medicine, followed by an Advanced Heart Failure fellowship at St. Francis Hospital and Medical Center. He then finished a cardiology fellowship with an additional year of interventional cardiology training through the Jefferson Medical College program at Christiana Care Health System in Newark, Delaware. He entered cardiology practice in 2012. His clinical interests include coronary interventions, percutaneous valve disease treatment, and Heart Team participation. Dr. Mandel takes a global view of cardiovascular health and builds personalized care plans for each patient. He is fluent in Russian.
Education & Training
Undergraduate
Hofstra University, Philosophy (major), Biology (minor)
Medical School
Ross University School of Medicine (Highest Honors, Distinguished Scholar, Dean's List)
Residency
Internal Medicine, University of Connecticut School of Medicine
Fellowship
Advanced Heart Failure, St. Francis Hospital and Medical Center; Cardiology and Interventional Cardiology, Jefferson Medical College program at Christiana Care Health System, Newark, Delaware
Additional Training
Entered cardiology practice in 2012
Certifications
Languages
English, Russian
Conditions Treated
Who is Dr. Mandel right for?
Dr. Mandel suits patients who want a cardiologist with broad diagnostic and procedural capabilities under one roof. Adults with coronary artery disease, heart failure, or valve disease benefit directly from his specialized training. Patients who prefer a physician who connects overall wellness to cardiovascular health will appreciate his philosophy. Russian-speaking patients will find his fluency an added benefit.
Similar Doctors Nearby
Dr. John CosmiMD
coronary artery disease, myocardial infarction
Dr. Mark BlumMD
coronary artery disease, heart disease
Dr. David Ira FreilichMD
heart failure, cardiovascular disease
Frequently Asked Questions
Dr. Mandel treats cardiac disease broadly, including coronary artery disease, heart failure, and valve disease. His board certifications in five disciplines allow him to diagnose and manage a wide range of cardiovascular conditions.
Yes. Dr. Mandel particularly enjoys procedural cardiology and performs coronary interventions. He also participates in percutaneous valve disease treatment as part of the Heart Team.
Yes. Dr. Mandel holds board certification in interventional cardiology, general cardiology, internal medicine, echocardiography, and nuclear cardiology. He completed fellowship training at Christiana Care Health System through the Jefferson Medical College program.
Dr. Mandel earned his medical degree from Ross University School of Medicine with Highest Honors. He completed his internal medicine residency at the University of Connecticut School of Medicine and an Advanced Heart Failure fellowship at St. Francis Hospital and Medical Center. His cardiology and interventional cardiology fellowships took place at Christiana Care Health System in Newark, Delaware.
Dr. Mandel takes a global view of patient health. He helps patients understand how overall wellness influences their cardiovascular health and builds individualized care plans rather than applying a one-size-fits-all approach.
Yes. Dr. Mandel is fluent in Russian, which allows him to serve Russian-speaking patients at Cardiology Associates - CCPHP in Morristown.
Dr. Mandel entered cardiology practice in 2012. He brings training across interventional cardiology, general cardiology, advanced heart failure, echocardiography, and nuclear cardiology to his work at the practice.
Doctor profile last updated April 11, 2026