An oncologist is a physician who treats cancer and provides medical care for someone with a cancer diagnosis. Oncologists treat all types of cancer, from breast to pancreatic, and may specialize in caring for an organ-specific cancer or a particular treatment type, like chemotherapy.
Your primary care physician might recommend you see an oncologist about a certain change in your body after running preliminary tests to rule out any other illnesses.
Typically, in your first visit with an oncologist, they will go over your specific cancer type and discuss which treatment options best fit your diagnosis.