Nikhil T. Sebastian, MD

Assistant Professor

Department of Radiation Oncology


(404) 778-3473


Emory Saint Joseph's Hospital



Nikhil T. Sebastian, MD, is a radiation oncologist in the Department of Radiation Oncology at Emory University School of Medicine in Atlanta, GA. Dr. Sebastian practices general radiation oncology and specializes in the treatment of breast, gastrointestinal and lung cancer. He is skilled in Gamma Knife radiosurgery and treats patients at Emory Saint Joseph's Hospital.


Dr. Sebastian received his medical degree from The Ohio State University in Columbus, Ohio, where he also completed his residency in radiation oncology.


Dr. Sebastian has earned several awards and recognitions, including the American Society for Radiation Oncology Basic/Translational Science Award, the Radiological Society of North America Roentgen Research Award, the American Brachytherapy Society Prostate Brachytherapy Workshop Scholarship, and nomination for best abstract from the European Society for Radiotherapy and Oncology.


Dr. Sebastian's research interests include clinical trial development, integration of novel therapeutics, and identification of prognostic biomarkers.


Dr. Sebastian has published research articles in a number of leading journals including the International Journal of Radiation Oncology · Biology · Physics, Radiotherapy and Oncology, JAMA Network Open, and Advances in Radiation Oncology.