Dr. Roberto Arevalo araujo is an oncologist practicing in Holiday, FL. Dr. Arevalo araujo specializes in the care and treatment of patients with cancer. As an oncologist, Dr. Arevalo araujo manages and oversees the treatment of a cancer patient after he or she has been diagnosed with the disease. Oncologists will care for their patients throughout the course of the disease. Types of oncologists include medical oncologists, surgical oncologists, radiation oncologists, gynecologic oncologists, pediatric oncologists and hematologist oncologists.