Physician specialty
Radiation Oncology
At a glance
- Practicing in the U.S.
- 6,976
- Per 100,000 residents
- 2.1
- Women
- 29%
- Median years since graduating
- 21
Training path
- College (bachelor’s degree) 4 years
- Medical school (MD or DO) 4 years
- Radiation oncology residency (including first clinical year) 5 years
Training after medical school: 5 years. From the start of college: about 13 years.
Usual minimum program lengths from ACGME program requirements. Some doctors take extra research years or a second fellowship.
Who they are
- MD (DOs make up the rest) 98%
- Women 29%
- Graduated 35 or more years ago 23%
- Offer telehealth 40%
- Accept Medicare’s approved amount 98%
Sex and credentials from NPPES. Graduation year, telehealth and Medicare assignment from Medicare Care Compare, which covers clinicians enrolled in Medicare.
Where they practice
What they do most for Medicare patients
- Ct guidance for insertion of radiation therapy fields 2,564,322
- Calculation of radiation therapy dose 1,099,668
- Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session 1,021,432
- Radiation treatment management, 5 treatment sessions 831,225
- Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy 693,562
- Design and construction of complex radiation treatment device 634,701
- Continuing radiation therapy consultation per week 306,177
- Complex radiation therapy planning 269,938
- Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 6-10 mev 233,977
- Established patient office or other outpatient visit, 20-29 minutes 225,598
- Design and construction of radiation treatment device for high precision radiation therapy 185,248
- Lutetium lu 177 vipivotide tetraxetan, therapeutic, 1 millicurie 178,555
Services billed to traditional Medicare in 2023 (Physician and Other Practitioners data); drugs given in the office are left out.
What they prescribe most
- Tamsulosin Hcl (Flomax) 37.8%
- Dexamethasone (Hemady, Maxidex, Ozurdex) 4.9%
- Lidocaine Hcl (Dermacinrx Lidogel, Glydo, Xylocaine) 4.2%
- Hydrocodone/Acetaminophen (Hydrocodone-Acetaminophen) 4.1%
- Mometasone Furoate (Asmanex Hfa, Asmanex) 3.6%
- Oxycodone Hcl (Oxycontin, Roxicodone, Roxybond) 3.3%
- Silver Sulfadiazine (Silvadene, Ssd) 2.7%
- Relugolix (Orgovyx) 2.6%
- Ciprofloxacin Hcl (Ciloxan) 2.5%
- Gabapentin (Gralise, Neurontin) 2.2%
- Bicalutamide (Casodex) 1.9%
- Oxybutynin Chloride 1.9%
- Lorazepam (Ativan, Loreev Xr) 1.6%
- Levothyroxine Sodium (Euthyrox, Levo-T, Ermeza) 1.2%
- Methylprednisolone (Medrol) 1.2%
Share of this specialty’s Medicare Part D prescriptions in 2024, including refills. Select a drug to see which of these clinicians prescribe it most, and where.
Hospitals where the most work
- Brigham and Women's Hospital Boston, MA 69 Radiation Oncology at Brigham and Women's Hospital
- Hospital of Univ of Pennsylvania Philadelphia, PA 63 Radiation Oncology at Hospital of Univ of Pennsylvania
- Mayo Clinic Hospital Rochester Rochester, MN 53 Radiation Oncology at Mayo Clinic Hospital Rochester
- Massachusetts General Hospital Boston, MA 53 Radiation Oncology at Massachusetts General Hospital
- UCSF Medical Center San Francisco, CA 42 Radiation Oncology at UCSF Medical Center
- Stanford Health Care Stanford, CA 41 Radiation Oncology at Stanford Health Care
- Cleveland Clinic Cleveland, OH 41 Radiation Oncology at Cleveland Clinic
- Northside Hospital Atlanta, GA 40 Radiation Oncology at Northside Hospital
- Barnes Jewish Hospital Saint Louis, MO 36 Radiation Oncology at Barnes Jewish Hospital
- Emory University Hospital Midtown Atlanta, GA 35 Radiation Oncology at Emory University Hospital Midtown
Clinicians who list the hospital in Medicare Care Compare. The number opens the list of who works there.
Schools they graduated from most
- Harvard Medical School 140
- University of Michigan Medical School 79
- Wayne State University School of Medicine 77
- University of Florida College of Medicine 76
- Duke University School of Medicine 67
- Yale University School of Medicine 66
- Baylor College of Medicine 62
- Indiana University School of Medicine 62
- Medical College of Wisconsin 60
- Johns Hopkins University School of Medicine 57
From Medicare Care Compare (Medicare-enrolled clinicians only).
Industry payments
Drug and device makers reported $6.6M in general payments to 3,442 clinicians in Radiation Oncology in 2025. See who received the most
Source: CMS Open Payments, program year 2025. A payment is not evidence of wrongdoing.
Research in this field
U.S. researchers published 53,546 articles and reviews in oncology in 2024–2026.
Journals with the most U.S. papers
- Journal of Clinical Oncology Lippincott Williams & Wilkins 2,249
- Cancers Multidisciplinary Digital Publishing Institute 1,010
- Annals of Oncology Elsevier BV 978
- Cureus Cureus, Inc. 902
- Annals of Surgical Oncology Springer Science+Business Media 863
- Gynecologic Oncology Elsevier BV 737
- International Journal of Radiation Oncology*Biology*Physics Elsevier BV 673
- Laboratory Investigation Elsevier BV 652
- Neuro-Oncology Oxford University Press 615
- Transplantation and Cellular Therapy Elsevier BV 615
Most-cited recent papers
- Global cancer statistics 2022: GLOBOCAN estimates of incidence and mortality worldwide for 36 cancers in 185 countries (opens in a new tab) CA A Cancer Journal for Clinicians, 2024 · cited 30,549 times · free to read
- Cancer statistics, 2024 (opens in a new tab) CA A Cancer Journal for Clinicians, 2024 · cited 10,142 times · free to read
- Cancer statistics, 2025 (opens in a new tab) CA A Cancer Journal for Clinicians, 2025 · cited 3,609 times · free to read
- Global patterns and trends in breast cancer incidence and mortality across 185 countries (opens in a new tab) Nature Medicine, 2025 · cited 1,408 times
- Individualised neoantigen therapy mRNA-4157 (V940) plus pembrolizumab versus pembrolizumab monotherapy in resected melanoma (KEYNOTE-942): a randomised, phase 2b study (opens in a new tab) The Lancet, 2024 · cited 974 times
- Breast cancer statistics 2024 (opens in a new tab) CA A Cancer Journal for Clinicians, 2024 · cited 905 times · free to read
- The Lancet Commission on prostate cancer: planning for the surge in cases (opens in a new tab) The Lancet, 2024 · cited 827 times · free to read
- Final, 10-Year Outcomes with Nivolumab plus Ipilimumab in Advanced Melanoma (opens in a new tab) New England Journal of Medicine, 2024 · cited 683 times · free to read
From OpenAlex, an open index of research papers. Papers with at least one author at a U.S. institution, classified by subject; the subject covers the whole field, so related specialties share these lists. Citation counts change daily.
Sources: CMS NPPES (counts, sex, credentials), Medicare Care Compare (schools, graduation years, hospitals, telehealth), CMS Medicare Physician & Other Practitioners (2023) and Part D Prescribers (2024), CMS Open Payments (2025), ACGME program requirements (training length), OpenAlex (research), U.S. Census Bureau ACS 2020–2024 (population).