Welcome to the Upper East Side Oncology section containing oncologists in 10022, 10065, 10021, 10075, 10028 and 10128 zip codes. Oncologists specialize in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. These specialists administer chemotherapy and consult with surgeons and radiotherapists on other treatments for cancer. Oncology is a subspecialty of internal medicine. Be sure to hold your mouse over any bold-italicized listings for a special pop-up description.