A doctor who has special training in diagnosing and treating cancer in adults using chemotherapy, hormonal therapy, biological therapy, and targeted therapy. A medical oncologist often is the main health care provider for someone who has cancer. A medical oncologist also gives supportive care and may coordinate treatment given by other specialists.
Last updated: 2017-08-30
Source: The National Cancer Institute's Dictionary of Cancer Terms (http://www.cancer.gov/dictionary)