Oncology is a great field requiring a medical doctorate. This means that you will have to complete college with a bachelor’s degree as well as all of the Pre-med requirements. GPA should probably be 3.5 or better. You will also have to score well on the MCAT. Once accepted to medical school, as long as you pass your classes and perform reasonably well during your four years of medical training, you can apply for an internal medicine 3-year residency. Following that, you will apply for a 3-year hematology and oncology fellowship. 4 years college + 4 years med school + 3 years IM + 3 years Heme Onc = 14 years of school after high school.