Priya Joshi and colleagues conducted an evaluation of geographic variation in Medicare reimbursement for extracorporeal membrane oxygenation (ECMO) using 2022 CMS Inpatient Provider Utilization and Payment Data. This retrospective cross-sectional analysis included hospital records assigned to MS-DRG 003, which encompasses ECMO or tracheostomy with mechanical ventilation for more than 96 hours. Hospital-level data were linked…