Doug worked for many years on NIH- and HHS-funded projects in telemedicine and other applications of computer science. He has worked with small businesses and government agencies on a wide variety of projects from optimizing medical record systems to finding ways to reduce greenhouse gas when producing high-quality animal feed. His book Overhauling America’s Healthcare Machine has been widely used in healthcare and economics courses. Since 2017, he has been focused on reversing the adverse impact of screen-based activities on physical and mental health.