Shaping health policy for millions, and still treating some on the side

On weekdays, Dr. Patrick H. Conway is one of the most powerful doctors in America, steering federal health programs that spend nearly $1 trillion a year while shaping health policies that affect tens of millions of citizens. On many weekends, he is just another doctor in blue sterile gloves and a yellow gown with a stethoscope around his neck, comforting children and training young physicians, many of whom have no idea of his other role.