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Dr. Martin Handler has been in the exclusive practice of cardiology and cardiovascular diseases since 1979 and has since become renowned for his work in this field. Affiliated with prestigious St. Francis Hospital, The Heart Center, Dr Handler has been a leading force in providing the most inclusive, non invasive cardiac care. His impressive portfolio includes Board Certification in three specialties,including Internal Medicine, Cardiovascular Medicine and Nuclear Medicine. 


Kathleen Dello, Registered Nurse, BSN, Practice Administrator, is an experienced cardiac care nurse. She is certified and credentialed as a Critical Care Registered Nurse (CCRN) by the American Association of Critical Care Nurses. All of our Physicians and Registered Professional Nurses are certified by the American Heart Association in Advanced Cardiovascular Life Support (ACLS). In addcition, staff members are certified in Basic Life Support (BLS). 



We appreciate how valuable your time is, so we schedule appointments with care and consideration insuring you will be seen promptly. Same day and next day appointments can easily be scheduled. Call 516-773-3500 to schedule your appointment today. 

Care and Convenience

Heart Diagostic Imaging eliminates the time and inconvenience of going from  one doctor to another for non-invasive diagnosis, evaluation, testing and treatment of cardiac conditions. Everything is done in our own facility by a professional, experienced and caring staff that understands your concerns and respects your privacy. From initial visit to follow-up care, Heart Diagnostic Imaging will evaluate your symptoms, assess your cardiac risk, help you modify and manage your risk as well as provide you with non-invasive cardiac testing and treatment modalities.

Our History

 Dr. Martin Handler founded his medical practice in 1979. It successfully expanded with the addition of Heart Diagnostic Imaging in 1996, establishing one of the first accredited Stress Radionuclide Laboratories in the United States. It was the first such diagnostic laboratories accredited in Nassau County and the five Boroughs of New York making landmark strides in the prevention of cardiac disease though diagnosis and treatment.

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