Welcome to the Upper East Side Cardiology section containing cardiologists in 10022, 10065, 10021, 10075, 10028 and 10128 zip codes. Cardiologists are trained in the diagnosis and treatment of conditions of the heart, lungs and blood vessels such as angina, abnormal heart rhythms and rheumatic heart disease. They often perform complicated diagnostic procedures, such as cardiac catheterization, and they consult with surgeons on heart surgery. Cardiology is a subspecialty of internal medicine. Be sure to hold your mouse over any bold-italicized listings for a special pop-up description.