Photo of Dr. Leonid Mandel

Dr. Leonid Mandel, MD

Concierge Cardiology physician, Morristown, NJ

Castle Connolly Private Health Partners
5.0 (10 reviews)

Dr. Mandel is a board-certified cardiology physician with Cardiology Associates of Morristown whose focus areas include heart failure and valve disease.

95 Madison Avenue, Morristown, NJ 07960
At a glance
Practice model
Concierge medicine membership
Board certification
Interventional cardiology, general cardiology, internal medicine, echocardiography and nuclear cardiology
Languages
Russian

Facts on this page last checked November 2026. How we check doctors

About Dr. Mandel

Dr. Mandel majored in philosophy with a minor in biology at Hofstra University. He graduated from Ross University School of Medicine with Highest Honors and a Distinguished Scholar award. He completed his internship and residency in internal medicine at the University of Connecticut School of Medicine and Dentistry.

His fellowships were in advanced heart failure at St. Francis Hospital and Medical Center, and in cardiology with an extra year of interventional cardiology at Christiana Care Health System in Newark, Delaware. He entered cardiology practice in 2012. NJ Top Docs says he has been with Cardiology Associates of Morristown since 2014.

His approach is to guide patients toward good health with personalized care plans, and to help them see how overall wellness affects the heart. He is part of the Heart Team and takes part in percutaneous valve disease treatment.

Membership and fees

The practice runs a concierge medicine model.

Membership includes 24/7 communication with the doctor, one-on-one health coaching, same or next day appointments, expedited specialty care and a nationwide referral network.

Services

Cardiac catheterization Cardiac valve disease Cardiomyopathy Heart failure Percutaneous coronary intervention Coronary interventions
What cardiology doctors commonly treat

Education and credentials

Degree
MD
College
Hofstra University
Medical school
Ross University School of Medicine
Internship
Internal medicine, University of Connecticut School of Medicine and Dentistry
Residency
Internal medicine, University of Connecticut School of Medicine and Dentistry
Fellowship
Advanced Heart Failure, St. Francis Hospital and Medical Center. Cardiology with interventional cardiology year, Christiana Care Health System
Board certification
Interventional cardiology, general cardiology, internal medicine, echocardiography and nuclear cardiology
Professional memberships
Fellow, American College of Cardiology
License
New Jersey
Board actions
Good standing (checked Nov 2026) None on record Verify with the New Jersey State Board of Medical Examiners
NPI
1710902846

Hospital and practice affiliations

Atlantic Medical Group and Morristown Medical Center

Location

95 Madison Avenue, Morristown, NJ 07960
Castle Connolly Private Health Partners practice page
Directions

Recognition and research

Awards

Teacher of the Year Award, cardiology fellowship at Morristown Medical Center, 2018
Awarded NJ Top Doctor for 2024 by NJ Top Docs
Named a Castle Connolly Top Doctor in Cardiovascular Disease

Publications

Authored a book chapter and has had papers published in peer-reviewed medical journals

Patient reviews

5.0
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Write a review
Rated 5 out of 5

"Never rushes through any part of the visit."

FMDD UserMay 2024
Rated 5 out of 5

Transparent, honest and trust worthy

"Ensures open and transparent communication with patients."

FMDD UserMar 2024
Rated 5 out of 5

Supports preventive healthcare strategies.

"Promotes wellness and preventive healthcare strategies."

FMDD UserMar 2024
Rated 5 out of 5

"Supports patients in achieving their health goals."

FMDD UserFeb 2024

Questions patients ask

Does Dr. Mandel offer a membership?

The practice runs a concierge medicine model. Membership includes same or next day appointments and 24/7 communication with the doctor.

Is Dr. Mandel board certified?

Dr. Mandel is board certified in interventional cardiology, general cardiology, internal medicine, echocardiography and nuclear cardiology.

Where did Dr. Mandel train?

He graduated from Ross University School of Medicine and completed his internal medicine residency at the University of Connecticut School of Medicine and Dentistry. He then completed fellowships in advanced heart failure and in cardiology with interventional cardiology.

Where is Dr. Mandel's office?

NJ Top Docs says Dr. Mandel has been with Cardiology Associates of Morristown since 2014.

Does Dr. Mandel treat heart failure?

Yes. His areas of focus include heart failure, cardiomyopathy and cardiac valve disease.

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