An oncologist is a medical professional who has the education and training necessary to diagnose and treat various type of cancers. Oncologists practice in hospitals and medical centers, university hospitals, and research organizations. In addition to diagnosing and treating tumors and cancer, they conduct research to learn more about cancer and how it acts in the body to help develop new treatment options.

A nurse practitioner is a registered nurse who has gone through additional training to provide more advanced medical and diagnostic care to patients with all different kinds of illnesses. These medical professionals generally hold at least a master’s degree, so they have a comprehensive basis of medical knowledge to help patients suffering from chronic and acute conditions. They may work in hospitals, intensive care units, hospice centers, and even doctor’s offices, depending on their specialty.