Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Oncologist
Medically reviewed by Min Clinic Staff | Updated: January 2026
Oncologist: A physician who specializes in the diagnosis and treatment of cancer. After a cancer diagnosis is made, it is the oncologist?s role to explain the cancer diagnosis and the meaning of the disease stage to the patient; discuss various treatment options; recommend the best course of treatment; deliver optimal care; and improve quality of life both through curative therapy and palliative care with pain and symptom management.