About
Dr. John Cosmi holds board certification in interventional cardiology, general cardiology, and internal medicine. A New Jersey native, he earned his undergraduate degree at Rutgers College in New Brunswick, majoring in classics and biology with honors and election to Phi Beta Kappa. He went on to New Jersey Medical School in Newark, where he earned multiple scholarships and gained election to Alpha Omega Alpha.
Dr. Cosmi completed his internal medicine residency at New York University Medical Center and Bellevue Hospital, where his peers selected him as chief medical resident. He remained at NYU for both his cardiology and interventional cardiology fellowships, earning fellow of the year honors twice and authoring scientific papers on echocardiography and myocardial infarction. He practices general and interventional cardiology at Morristown Memorial Hospital, with focused clinical interests in preventive cardiology and coronary artery disease.
Education & Training
Undergraduate
Rutgers College, New Brunswick, B.A. Classics and Biology (Honors, Phi Beta Kappa)
Medical School
New Jersey Medical School, Newark (Alpha Omega Alpha)
Residency
Internal Medicine, New York University Medical Center and Bellevue Hospital; served as Chief Medical Resident
Fellowship
Cardiology and Interventional Cardiology, New York University Medical Center
Certifications
Conditions Treated
Who is Dr. Cosmi right for?
Dr. Cosmi is a good match for patients who want a cardiologist with deep expertise across both general and interventional cardiology. Adults concerned about coronary artery disease or seeking proactive preventive cardiology benefit from his focused clinical interests. His background in internal medicine makes him well-suited for patients with overlapping medical conditions. Patients who value academic rigor in their physician will appreciate his research and training record.
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Frequently Asked Questions
Dr. Cosmi specializes in general and interventional cardiology, with particular interests in preventive cardiology and coronary artery disease. He also holds board certification in internal medicine, which informs his comprehensive approach to cardiovascular health.
Yes. Dr. Cosmi holds board certification in interventional cardiology, general cardiology, and internal medicine. He completed his cardiology and interventional cardiology fellowships at New York University Medical Center.
Dr. Cosmi attended New Jersey Medical School in Newark, where he earned election to Alpha Omega Alpha. He completed his internal medicine residency at NYU Medical Center and Bellevue Hospital, then returned to NYU for cardiology and interventional cardiology fellowships.
Yes. His residency peers selected him as chief medical resident at NYU Medical Center and Bellevue Hospital. During his cardiology fellowship at NYU, he earned fellow of the year honors twice and authored several scientific papers on echocardiography and myocardial infarction.
Dr. Cosmi treats coronary artery disease, myocardial infarction, and a broad range of cardiovascular conditions. His preventive cardiology interest means he also works with patients to reduce cardiac risk before serious events occur.
Dr. Cosmi practices at Morristown Memorial Hospital in New Jersey and sees patients through Cardiology Associates - CCPHP in Morristown.
Doctor profile last updated April 11, 2026