Dr. John T. Barnard is a Internal Medicine and Cardiologist in Erasmus, New York and has an experience of 50 years in these fields. Dr. John T. Barnard practices at NewYork-Presbyterian Lower Manhattan Hospital in Erasmus, New York and Weill Cornell Medical College Division Of Gastroenterology And Hepatology in New York 10021, New York. He completed Fellowship from St Luke S Roosevelt Hospital Center in 1979,Medical School from University Of Texas Southwestern Medical Center in 1976 and Internship from St Lukes Hospital in 1977. He is a member of American College of Cardiology. Some of the services provided by the doctor are: Blood Test,Hypokalemia,Atrial Septal Defect,Noninfective Endocarditis and Chest Pain Evaluation etc.