Dr. Claassen is a nationally and internationally recognized expert in the treatment of neurological intensive care. He is an expert in status epilepticus and brain hemorrhages. He is the co-chair for guidelines development for the Neurocritical Care Society (http://www.neurocriticalcare.org/education-training/ncs-guidelines).

Dr. Claassen received a PhD in neurophysiology studying evoked potentials after traumatic brain injury. He has published more than 150 journal articles, book chapters, and reviews. His research characterizes physiologic changes following acute brain injury, focusing on novel treatment approaches to potentially improve patient outcomes. He has championed the use of innovative brain monitoring techniques including continuous EEG monitoring.