A medical dosimetrist calculates radiation doses for cancer treatment and ensures patients receive precise, safe therapy. The work is technical, detail-oriented, and requires a bachelor's degree. Here is what the job involves, what preparation looks like, and how to enter the field.
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Medical dosimetrists work with computers and radiation physics to plan and calculate treatment doses for cancer patients. You analyze medical images, use specialized software to model radiation delivery, and document detailed treatment plans. The role involves making critical decisions about dose distribution, staying current with evolving medical protocols, and communicating your findings with radiation oncologists and medical physicists. You monitor treatment outcomes and adjust plans as needed to keep patients safe and effective.
Core work activities
Career video courtesy of CareerOneStop.
Medical Dosimetrists earn a median of $147,470 a year, based on 2025 data from the U.S. Bureau of Labor Statistics. Pay rises with experience, specialty, and location.
The outlook is steady. Employment is projected to grow 4 percent from 2024 to 2034, about as fast as average for all occupations, with about 200 openings a year.
Top skills
Knowledge areas
You will need a bachelor's degree, typically in a field like physics, engineering, or a health science. Your coursework will emphasize mathematics, physics, biology, and computer skills. During your degree, you will build knowledge in radiation oncology, treatment planning systems, and anatomy. Many programs include clinical rotations where you work alongside experienced dosimetrists. After graduation, you may pursue professional certification to advance your credentials and demonstrate competency in the field.
Most paths to this career start with choosing your bachelor's degree program and planning your clinical experience. Since the field requires both strong science foundations and hands-on training, Pathly can map the medical dosimetrist path that fits you to map out your education steps and connect with a counselor who can help you find programs that fit your goals.
You are drawn to investigative work that requires precision, problem-solving, and continuous learning. You enjoy working with data and technology to understand complex systems and improve outcomes.
Reading about a career is the easy part. Turning it into a plan is where most students get stuck. Pathly takes you from curious to a clear next step, and gives your counselor the insight to champion you along the way.
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Last updated July 1, 2026.
Data sources. Career details from the O*NET 30.3 Database by the U.S. Department of Labor, Employment and Training Administration (USDOL/ETA), used under CC BY 4.0. O*NET® is a trademark of USDOL/ETA. Salary and outlook figures from the U.S. Bureau of Labor Statistics (May 2025 wages; 2024–2034 projections), delivered via the CareerOneStop API. Certification, licensing, wage, and outlook data from CareerOneStop, sponsored by USDOL/ETA and the Minnesota Department of Employment and Economic Development (DEED).