Best hospitals for Radiation Oncology: A data-based guide to leading cancer centers

Best hospitals for Radiation Oncology can be assessed through national cancer rankings, specialty accreditation, available treatment technologies, research activity, and experience with particular cancer types. The 2026-2027 U.S. News & World Report cancer rankings placed UT MD Anderson Cancer Center first nationally, with Memorial Sloan Kettering Cancer Center second for the 12th consecutive year. 1

Nationally recognized cancer centers

UT MD Anderson Cancer Center has been ranked the nation’s leading cancer hospital for the 12th consecutive year and the 22nd time in 25 years, according to reporting on the 2026-2027 rankings. The institution has ranked first or second in cancer care every year since the rankings began in 1990. 1 These figures describe overall cancer care rather than a universal ranking for every radiation oncology diagnosis.

Memorial Sloan Kettering Cancer Center was ranked second in the same national cancer assessment and has held that position for 12 consecutive years. Other hospitals listed among the top 10 included Dana-Farber Brigham Cancer Center, Mayo Clinic in Rochester, Massachusetts General Hospital, Johns Hopkins Hospital, the Hospital of the University of Pennsylvania, Northwestern Medicine-Northwestern Memorial Hospital, Stanford Health Care-Stanford Hospital, Mount Sinai Hospital, and UCSF Health-UCSF Medical Center. 1

Radiation oncology capabilities at major centers

Radiation oncology programs differ in the techniques and clinical settings they support. Grady Health reports offering external beam radiation therapy, intensity-modulated radiation therapy, image-guided radiation therapy, stereotactic body radiation therapy, stereotactic radiosurgery, three-dimensional radiation therapy, and brachytherapy. Its program also uses imaging, motion tracking, and treatment-planning tools intended to target tumors while limiting exposure to nearby healthy tissue. 4

Mayo Clinic’s Rochester program provides another example of specialized capability. Its proton therapy program treated 10,000 patients during its first decade after opening in 2015, and the center reports treating 30% to 40% more patients annually than most comparable centers. The program uses pencil beam scanning and has developed eye-tracking technology for ocular melanoma treatment. 8

Accreditation, safety, and quality oversight

Accreditation can provide information beyond a hospital’s reputation or ranking. The Department of Radiation Oncology at Siteman Cancer Center received reaccreditation through the American Society for Radiation Oncology’s APEx program, which evaluates radiation oncology centers against standards for safety, quality, communication, coordinated treatment, and patient engagement. 3

All seven Siteman Cancer Center locations received full APEx reaccreditation through February 2030. Barnes-Jewish Hospital and Memorial Hospital East also received APEx accreditation for radiopharmaceutical therapy, described in the source as a newly introduced accreditation process. 3 Accreditation is voluntary and does not guarantee a particular outcome, so it should be considered alongside diagnosis-specific expertise, treatment planning, and follow-up arrangements.

Specialized expertise and research access

Johns Hopkins provides an example of a program organized around specialty leadership and research. Akila Viswanathan, MD, MPH, is identified as director of Johns Hopkins Radiation Oncology and Molecular Radiation Sciences and director of gynecological radiation oncology. Her clinical expertise includes cervical and uterine cancers and image-guided brachytherapy, with integration across several Johns Hopkins sites. 7

NYU Langone’s Perlmutter Cancer Center has emphasized personalized radiation research in oligometastatic and oligoprogressive disease. Department chair Daniel Gomez previously served as director of thoracic radiation oncology and vice chair of clinical operations at Memorial Sloan Kettering Cancer Center, and he was co-principal investigator of NRG-LU002, described as the largest randomized trial to date evaluating local ablative therapy in oligometastatic non-small cell lung cancer. 5

Regional and international options

Geography can affect continuity of treatment because radiation courses may involve repeated visits, multidisciplinary consultations, imaging, and follow-up. USC Norris Comprehensive Cancer Center and Hospital in Los Angeles provides radiation oncology within a 60-bed academic cancer hospital and organizes care across areas including breast, gastrointestinal, gynecologic, lung, head and neck, neuro-oncology, sarcoma, skin, and urologic cancers. 2

Outside the United States, Keio University School of Medicine describes its radiation oncology department as Japan’s oldest, founded in 1920. The department reports approximately 40 physicians working across Keio University Hospital and 16 affiliated institutions, treating more than 1,100 patients annually and offering the range of radiation therapy options associated with a leading university hospital. 9

How to compare hospitals responsibly

Hospital rankings are useful for identifying institutions with broad cancer-care resources, but they are not substitutes for an individualized consultation. OHSU notes that its cancer specialty ranked 25th nationally in the 2026-2027 U.S. News assessment and that OHSU Hospital ranked first in Oregon. The rankings combine outcome, process, and structure measures for many specialties, while some areas rely solely on expert opinion. 10

Eligibility for a treatment depends on clinical factors, including the cancer diagnosis, location, prior therapy, overall health, and the treatment team’s assessment. Proton therapy, stereotactic treatment, brachytherapy, and radiopharmaceutical therapy are not interchangeable options, and access may vary by site. Patients may therefore compare a nationally ranked hospital with a specialized regional program, particularly when travel and ongoing follow-up create practical barriers.

Key limitations and patient considerations

Advanced equipment does not independently establish that one hospital is appropriate for every patient. Radiation treatment requires physician assessment, simulation, dose planning, quality checks, treatment delivery, symptom management, and surveillance. Programs may also differ in clinical trial availability, staffing, subspecialty experience, and coordination with medical and surgical oncology.

The most defensible comparison combines public ranking data with accreditation information, diagnosis-specific expertise, treatment eligibility, and practical continuity of care. National leaders such as MD Anderson, Memorial Sloan Kettering, Mayo Clinic, Johns Hopkins, and Dana-Farber Brigham appear in the supplied research, while programs such as Siteman, Grady, USC Norris, Keio, and OHSU illustrate the importance of technology, regional access, quality oversight, and academic research.

Sources

1. Healio: UT MD Anderson once again named nation’s best cancer hospital
2. Keck Medicine of USC: Los Angeles Norris Comprehensive Cancer Center
3. Washington University in St. Louis: National reaccreditation earned for excellence in care
4. Grady Health: Advanced Cancer & Non-Cancer Radiation Therapy
5. NYU Langone Health: Delivering Highly Personalized Radiation Therapy
6. OU Health: Stephenson Cancer Center
7. Johns Hopkins Medicine: Dr. Akila Viswanathan, MD, MPH
8. Mayo Clinic News Network: Proton beam and particle therapy program
9. Keio University School of Medicine: Department of Radiation Oncology
10. OHSU News: OHSU ranked best hospital in Oregon