Changes in primary care access at community health centers between 2012/2013 and 2016.

<bold>Objective: </bold>To compare access at community health centers (CHCs) vs private offices (non-CHCs) under the Affordable Care Act.<bold>Data Source: </bold>Ten state primary care audit conducted in 2012/2013 and 2016.<bold>Study Design: </bold>CHCs and non-CHCs were called. We calculated difference in differences comparing CHCs vs non-CHCs by caller insurance type.<bold>Principal Findings: </bold>In both rounds, Medicaid and uninsured callers had higher appointment rates at CHC than non-CHCs. CHC appointment rates significantly increased between 2012/2013 and 2016 for both employer-sponsored and Medicaid callers, with no significant wait time changes. Appointment rates increased (13.5% points, P < 0.001) and wait times decreased (-5.7 days, P = 0.017) at CHCs relative to non-CHCs for employer-sponsored insurance.<bold>Conclusion: </bold>Appointment availability at CHCs improved after ACA implementation, without increased wait times. [ABSTRACT FROM AUTHOR]