Daniel J. Arenas is a Colombian immigrant, medical student, and researcher. He received a BS in physics a long, long time ago. He received a Physics PhD in 2009 from University of Florida and subsequently became a faculty member at the University of North Florida. In 2016 he began medical school at the University of Pennsylvania and is currently on a research gap year working at the CDCN. He hopes to contribute the research skills he obtained in physics to the fight against Castleman Disease.