Jonathan W. Lischalk, MD, is a clinical instructor in MedStar Georgetown University Hospital’s Department of Radiation Medicine. His clinical focus is treating lung, brain and spine, and prostate cancers. Dr. Lischalk specializes in proton therapy, intensity modulated radiation therapy, image guided radiation therapy, RapidArc®, CyberKnife® stereotactic body radiation therapy, and stereotactic radiosurgery. His training includes international experience at the Heidelberg University Hospital in Heidelberg, Germany, focused on technique and delivery of particle therapy, specifically proton and carbon treatment. Dr. Lischalk is actively involved in collaborative research with the National Institute of Standards and Technology, Georgetown Biomedical Informatics Department and Heidelberg University Hospital focused on analysis of ccfDNA using scanning microscopy fluoroscopic technique.

Dr. Lischalk’s main areas of clinical expertise include:
• Central nervous system malignancies
• Gastrointestinal malignancies
• Genitourinary malignancies
• Thoracic malignancies

Dr. Lischalk also performs brachytherapy treatment.