Donald Kosiak, MD, MBA, FACHE, CPE is a proven physician leader in change management and implementation of current and future healthcare trends. As the Chief Medical Officer for Leidos, he is responsible for providing clinical expertise, perspective, leadership and direction to ensure collaboration and alignment to business strategy across the entire Leidos organization. Prior to joining Leidos he served as the Vice President for Medical Development and Executive Medical Director for Avera Health, a 32-hospital integrated medical system based in Sioux Falls, South Dakota. In that role, he served as the chief medical officer of one of the top telemedicine programs in the United States. In addition, he has served as the elected Chief of Staff of the Avera McKennan Hospital, a 545-bed tertiary medical center. He is also an actively practicing emergency medicine physician. Dr. Kosiak serves in the Army National Guard as an emergency physician. He is currently holds the rank of Colonel and is assigned as State Surgeon, South Dakota Army National Guard. He is a decorated officer having served multiple tours of duty in support of Operation Iraqi and Enduring Freedom. Dr. Kosiak attended medical school at the University of North Dakota. He completed his emergency medicine residency at the Mayo Clinic. He also completed a Masters of Business Administration from the University of Mary. He is board-certified by the American Board of Emergency Medicine and the Certifying Commission in Medical Management.