Leonard, John P Md 1300 York Ave # C606 New York, NY 10021 Phone : (212) 746-2060 Business Category Physicians & Surgeons-M.D. Physicians & Surgeons-Internal Medicine Hematology & Oncology-adm 1300 York Ave # C606 New York, NY 10021 Phone : (212) 746-2060 Business Category Physicians & Surgeons-M.D. Physicians & Surgeons-Internal Medicine