What Does an Oncologist Do?

An oncologist’s central purpose is to diagnose and treat cancer while helping patients manage its effects. The oncologist reviews medical history and test results to understand the cancer and determine its extent. That assessment guides recommendations about treatment and the goals of care. During treatment, the oncologist monitors the patient’s response and addresses harmful effects. By explaining options and coordinating with other clinicians, the oncologist helps patients make informed choices and supports continuity of care.

What Is a Oncologist?

An oncologist is a physician who specializes in cancer care. Depending on the specialty, the oncologist may manage cancer medicines, provide radiation treatment, or perform surgery. Medical oncologists often oversee drug treatments and coordinate care with other specialists. Radiation oncologists focus on using radiation to treat cancer, while surgical oncologists focus on operations related to cancer diagnosis or treatment.

Oncologists use clinical findings and diagnostic evidence to understand the cancer and recommend an appropriate course of care. They may treat patients in hospitals, cancer centers, or outpatient clinics. Cancer care often involves multiple specialties, so the oncologist may work with pathologists, radiologists, nurses, surgeons, and other clinicians.

What Are the Main Responsibilities of a Oncologist?

A central responsibility is establishing what type of cancer is present and how extensive it is. The oncologist reviews the patient’s history and symptoms, examines the patient, and interprets available imaging and laboratory results. If the evidence is incomplete, the oncologist may recommend additional tests. A pathologist’s analysis of a biopsy can help identify the cancer and features that may affect treatment choices.

The oncologist then recommends a treatment approach based on the cancer’s characteristics and extent, the patient’s health, prior care, and preferences. Options may include cancer medicines, radiation, surgery, or a combination of approaches. The oncologist explains the expected aims and possible tradeoffs so the patient can participate in decisions. When care requires other specialties, the oncologist coordinates with the relevant clinicians.

Care continues after treatment begins. The oncologist assesses whether the cancer is responding and whether side effects are manageable, then adjusts the plan when needed. The oncologist also helps address symptoms and plans follow-up after active treatment. Follow-up may include checking for recurrence or managing lasting effects of cancer and treatment.

What Does a Oncologist Do on a Daily Basis?

A typical clinic day may begin with reviewing patient records, recent scans, laboratory results, and notes from other clinicians. During consultations, the oncologist asks about symptoms and treatment effects, examines the patient when appropriate, and discusses new findings. The conversation helps establish whether the current plan is working and whether the patient can tolerate it.

After a visit, the oncologist documents the assessment and updates the care plan. That may involve discussing a case with another specialist or arranging further testing when the evidence could change the recommendation. The oncologist may also explain treatment options to a patient who is starting care or discuss a change when treatment is no longer effective or its effects are too difficult. Work may include follow-up visits and coordination with the care team beyond scheduled appointments.

What Skills Does a Oncologist Need?

Oncologists need strong clinical reasoning to interpret evidence that may not point to a simple answer. For example, they compare test results with symptoms and the patient’s overall health before deciding whether a treatment remains appropriate. They must also understand how different cancer treatments work and how their risks and potential benefits apply to an individual patient.

Clear communication is essential when explaining a diagnosis, uncertainty, and treatment choices. An oncologist may need to describe why additional testing is needed before recommending a plan, or help a patient weigh the expected benefits and burdens of treatment. Collaboration matters because cancer care can involve several specialists, each contributing different expertise. Careful attention to detail supports accurate interpretation of results and consistent follow-up.

How Much Does a Oncologist Earn?

The U.S. Bureau of Labor Statistics does not report a separate median wage for oncologists in its physician occupation profile. The latest relevant BLS figure is for physicians and surgeons overall: their median annual wage was $275,930 in May 2025. This broad-group figure is not an oncology-specific salary, and individual pay can vary by specialty and employer.

What Is the Career Progression for a Oncologist?

Oncologists first complete medical education and postgraduate clinical training. The particular training route depends on the type of oncology they pursue. BLS describes the general physician pathway as including a bachelor’s degree, a medical degree, and residency; physicians who subspecialize may complete additional fellowship training. Physicians must meet the licensing requirements that apply where they practice.

After training, an oncologist may develop a practice focused on a particular cancer type, treatment approach, patient population, or care setting. With experience, some take on responsibilities in clinical education, research, or leadership of cancer services. These are possible career directions rather than required steps for every oncologist.

How Contingent Workforce Management Helps Businesses Hire Oncologists

Contingent workforce management services help organizations set up and administer time-limited engagements with workers. A hospital or cancer center may need temporary oncology coverage when a physician is on leave or appointment demand rises. If the organization has already identified an oncologist for a defined assignment, hiring the worker directly and using third-party payrolling can be a lower-cost alternative to a staffing agency.

TCWGlobal helps companies manage contingent oncologists through payrolling and workforce support for the engagement. For a defined coverage period, this can reduce the need for a staffing-agency layer while helping the company handle employment administration. The arrangement can save money and reduce administrative work while the organization focuses on maintaining clinical coverage.