Coverage Expansions and Utilization of Physician Care: Evidence From the 2014 Affordable Care Act and 1966 Medicare/Medicaid Expansions

Objectives. To evaluate the effects of the 2 major coverage expansions in US history—Medicare/Medicaid in 1966 and the Affordable Care Act (ACA) in 2014—on the utilization of physician care. Methods. Using the National Health Interview Survey (1963–1969; 2011–2016), we analyzed trends in utilization of physician services society-wide and by targeted subgroups. Results. Following Medicare/Medicaid’s implementation, society-wide utilization...