HCCI's data users and staff use our multi-payer, longitudinal commercial claims dataset to study some of the most pressing issues in the U.S. health care system. Here we highlight some recent research using HCCI data: COVID Tests Cost $0 for Most People in 2020 | HCCI We used HCCI's unique commercial claims dataset to analyze claims from over 19 million COVID-19 tests across 50 states and Was...