Dr. Dennis is an attending surgeon at the Cook County Trauma and Burn Units in Chicago Il. He is the Chairman of the Department of Surgery at Midwestern University, Chicago College of Osteopathic Medicine and holds a faculty position at Rush University as an Assistant Professor of Surgery. He is board certified in general surgery and critical care. Dr. Dennis actively engages in both clinical and laboratory research, most recently publishing several studies on electronic control devices, including the TASER.
Dr. Dennis has been a part of law enforcement and EMS for more than twenty years. In addition to his clinical and academic roles, he is a sworn law enforcement officer and the team surgeon and TEMS provider for the Northern Illinois Police Alarm System Emergency Services Team (NIPAS EST).
Dr. Dennis remains extremely active as both a law enforcement officer and trauma surgeon and is a veteran in dealing with life threatening circumstances both in the hospital and in the field. Most recently, Dr. Dennis and colleagues have developed the Medical Tactics course series, which brings critical life saving education to all levels of law enforcement.