A cancer doctor who treats with radiation beams instead of a scalpel. Thirteen years of training for one of the highest paid jobs in medicine.
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What you earn and what it costs to get there.
Typical
$420,860
Academic or part-time
$89,010
Top tenth
$594,410
The median is $420,860 a year and the bottom tenth sit near $89,010. The survey title behind these numbers is radiologists, the doctors who read medical images, and radiation oncologists are not broken out on their own. Both are certified by the same board and paid at a similar level. The survey also only counts physicians who are employees, so doctors in private groups are missing from it entirely.
$65,000 to $85,000
Salary across five years of paid hospital training
You are a working doctor for those five years, paid a fraction of what the job eventually pays, while medical school loans keep growing behind you.
A machine worth millions
One linear accelerator treats dozens of patients a day
Radiation treatment centers generate a lot of revenue per doctor, and there are very few radiation oncologists in the country. Small supply plus expensive equipment is what sets this pay level.
Tuition, fees, exams and kit. Not rent, food or travel
The low end is a community college transfer into an in state public university, then an in state public medical school, plus the Medical College Admission Test, applications and the national licensing exam sequence. The high end is four full years of undergraduate study and a private medical school at around $65,000 a year. The five years of residency after medical school are paid employment, so they add board fees rather than tuition. Median education debt for medical graduates who borrow is around $200,000, and the interest that builds during training is not counted in these numbers.
Median education debt for medical graduates who borrow is around $200,000. At this income it clears quickly, or ten years at a nonprofit cancer center clears it through PSLF (Public Service Loan Forgiveness).
Predictable hours for a doctor
Treatment is scheduled weeks ahead. There is very little middle-of-the-night work compared with surgery or emergency medicine.
Malpractice cover paid
Always carried by the hospital or the group.
Signing bonuses and loan repayment
Common outside major cities, where centers struggle to recruit.
Research time
Academic centers build protected research days into the contract.
The exact path from high school to qualified.
Medical school, then one general clinical year, then four years devoted entirely to treating cancer with radiation.
High school
Grades 11 and 12
Biology, chemistry, physics and math. Physics matters more here than in almost any other medical specialty.
Bachelor's degree
4 years
Any major with the pre-medical science courses finished, plus the MCAT (Medical College Admission Test).
Medical school
4 years
Classroom science then hospital rotations. You graduate as a Doctor of Medicine (MD) or a Doctor of Osteopathic Medicine (DO).
Preliminary clinical year
1 year
A general year in internal medicine or surgery before the specialty training starts.
Radiation oncology residency
4 years
Cancer biology, radiation physics, treatment planning and clinic. You learn to aim a beam at a tumor while sparing what is next to it.
Board certification
During and after residency
Written qualifying exams during residency, then an oral certifying exam from the American Board of Radiology.
Physics
Radiation dose, beam energy and shielding are physics problems you will solve every week.
Biology
Why radiation kills a tumor cell and spares a healthy one is cell biology.
Chemistry
Required for every pre-medical track.
Calculus and statistics
Treatment planning is mathematical, and you will read clinical trials for your whole career.
Each state licenses doctors through its own medical board, and you hold a license in every state where you treat patients. The exams themselves are national: the United States Medical Licensing Examination sequence during medical school and residency, then certification by the American Board of Radiology, which covers both radiology and radiation oncology. Residency programs must be accredited by the Accreditation Council for Graduate Medical Education, and finishing an accredited program is what makes you eligible for the board exams.
Medical physicists
They make sure the machine delivers exactly the dose that was planned, and check it constantly.
Dosimetrists
They build the treatment plan on a computer, shaping the beams around the tumor.
Radiation therapists
They position the patient and run the treatment every day of the course.
Medical and surgical oncologists
Cancer care is decided together. You argue over the plan in a weekly meeting with the whole team.
Things you don't need, but that help.
Brachytherapy
Placing a radioactive source inside or against the tumor. Hands-on, procedural, and a skill in short supply.
Stereotactic treatment
Very high doses aimed with millimeter accuracy, sometimes in a single session.
Pediatric radiation oncology
Treating children, where sparing growing tissue matters for the next sixty years.
Proton therapy
A different kind of beam at a small number of centers. Working with it means moving to where the machine is.
Genuine comfort with physics
This specialty attracts people who liked physics and medicine equally, and it rewards them.
Research during medical school
Radiation oncology programs are small and selective, and publications carry weight.
The ability to talk about dying
Some of your patients are being treated to buy time or to ease pain, not to be cured.
Attention to detail
A plan aimed a few millimeters wrong can injure a spinal cord. Checking is a habit, not a task.
There are far fewer radiation oncologists in the country than internists or surgeons, and far fewer training spots. That keeps pay high and makes the community tight, but it also means jobs cluster where the machines are. New graduates often have to move to a specific city rather than choose freely, and the number of training positions has been argued over inside the field for years because nobody wants to train more doctors than the machines can employ.
Day to day, pros and cons, where you'd work.
Morning clinic: new patients who have just been told they have cancer, and follow-ups weeks or years into treatment. You explain what radiation does, how many sessions it takes, and what it will feel like. Midday is treatment planning at a screen, drawing the tumor and the organs around it on CT (computed tomography) images with a dosimetrist. Afternoon is the weekly cancer conference where surgeons, medical oncologists and pathologists argue about a single patient, plus checks on people partway through a course of treatment.
The good
The hard parts
Things people don't tell you.
It is used to cure tumors, to shrink them before surgery, and to relieve pain when cure is not possible. That makes this a small specialty involved in a very large share of cancer care.
A standard course is a short treatment every weekday for several weeks. Splitting the dose lets healthy tissue repair between sessions while the tumor falls behind.
The American Board of Radiology certifies both the doctors who read scans and the doctors who treat cancer with radiation. They split into separate specialties long ago but kept the same board.
Certification ends with an oral exam where examiners present cases and you talk through what you would do. There is nowhere to hide behind multiple choice.
Last checked September 2026. Pay figures are typical full-time annual amounts in United States dollars, based on Bureau of Labor Statistics wage data and published pay scales. They vary by state, employer and experience. Tuition is for in-state students at public schools unless the card says otherwise.