Susannah G. Ellsworth

Susannah G. Ellsworth, MD

Assistant Professor of Radiation Oncology


Dr. Susannah Ellsworth was appointed as an Assistant Professor in the Department of Radiation Oncology at the Indiana University School of Medicine in April 2015. She has served as the Residency Program Director of the Department of Radiation Oncology since November 2015. 

Dr. Ellsworth received her undergraduate degree at Johns Hopkins University and her M.D. from the University of Maryland. She went on to do her internship and residency in Radiation Oncology at the University of Maryland Medical Center, followed by an NIH-funded T32 training grant in Neuro-Oncology research and a Pain and Palliative Medicine fellowship, both at Johns Hopkins. 

Key Publications

Ellsworth SG. Field size effects on the risk and severity of treatment-induced lymphopenia in patients undergoing radiation therapy for solid tumors. Adv Radiat Oncol. 2018 Oct 23;3(4):512-519. doi: 10.1016/j.adro.2018.08.014. eCollection 2018 Oct-Dec. Review. PMID: 30370350.

Wild AT, Herman JM, Dholakia AS, Moningi S, Lu Y, Rosati LM, Hacker-Prietz A, Assadi RK, Saeed AM, Pawlik TM, Jaffee EM, Laheru DA, Tran PT, Weiss MJ, Wolfgang CL, Ford E, Grossman SA, Ye X, Ellsworth SG. Lymphocyte-sparing effect of stereotactic body radiation therapy in patients with unresectable pancreatic cancer. Int J Radiat Oncol Biol Phys. 2016 Mar 1;94(3):571-9. doi: 10.1016/j.ijrobp.2015.11.026. PMID: 26867885.

Ellsworth SG, Rabatic BM, Chen J, Zhao J, Campbell J, Wang W, Pi W, Stanton P, Matuszak M, Jolly S, Miller A, Kong FM. Principal component analysis identifies patterns of cytokine expression in non-small cell lung cancer patients undergoing definitive radiation therapy. PLoS One. 2017 Sep 21;12(9):e0183239. doi: 10.1371/journal.pone.0183239. PMID: 28934231

Long DE, Tann M, Huang KC, Bartlett G, Galle JO, Furukawa Y, Maluccio M, Cox JA, Kong FS, Ellsworth SG. Functional liver image guided hepatic therapy (FLIGHT) with hepatobiliary iminodiacetic acid (HIDA) scans. Pract Radiat Oncol. 2018 Nov - Dec;8(6):429-436. doi: 10.1016/j.prro.2018.04.014. Epub 2018 May 1.


(317) 944-2524 

Radiation Oncology
535 Barnhill Drive, RT 041 RAON
Indianapolis, IN 46202


Translational Research

Titles & Appointments

  • Residency Program Director, Radiation Oncology