Dr. Donald Kosiak

Dr. Donald Kosiak

Dr. Donald Kosiak

Chief Medical Officer | Leidos

Dr. Donald Kosiak serves as the Chief Medical Officer for Leidos. He is responsible for providing clinical subject matter expertise and perspective, knowledge, experience, leadership, and direction to ensure collaboration and alignment to business strategy across the entire Leidos organization. Previously, he was Vice President for Medical Development and Executive Medical Director for Avera Health, a 32-hospital integrated medical system based in Sioux Falls, South Dakota, and was also Chief Medical Officer of one of the top telemedicine programs in the United States. In addition, he served as the elected Chief of Staff of the Avera McKennan Hospital, a 545-bed tertiary medical center in Sioux Falls.
Dr. Kosiak continues to serve in the United States Army Reserve as an emergency physician and is a decorated officer having served three 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 in Rochester, Minnesota, and his Master of Business Administration in 2010 from the University of Mary in Bismarck, North Dakota. He is board-certified by the American Board of Emergency Medicine and the Certifying Commission in Medical Management.