Dr. Jonathan H. Sumner is a cardiologist in Rockville Centre, New York and is affiliated with multiple hospitals in the area, including Brookdale Hospital Medical Center and Mount Sinai South Nassau Hospital. He received his medical degree from Universite Libre de Bruxelles Faculty of Medicine and has been in practice for more than 20 years. Dr. Jonathan H. Sumner has expertise in treating bronchitis, hypertension & high blood pressure, diabetes, among other conditions - see all areas of expertise. Dr. Jonathan H. Sumner accepts Medicare, Aetna, Humana, Blue Cross, United Healthcare - see other insurance plans accepted. Dr. Jonathan H. Sumner is highly recommended by patients.