This report is primarily based on two years of ControlCheck data from January 2022 through December 2023 and over 127M controlled substance transactions occurring at 794 hospitals and health systems across the United States. Throughout 2022 and 2023, the dataset increased from 354 hospitals to 794. Some figures throughout this report will be noted as all-time ControlCheck data from September 2018 through December 2023 including over 190M controlled substance transactions.