We begin our analysis of the 30 Baht program with its effects on inpatient utilization. We focus on the impact on both the MWS population and a combined group of previously uninsured and 500 Baht users. Because their ex ante choice sets were identical, we pool the previously uninsured with the 500 Baht users for our analysis. Our primary empirical approach will consider a difference-in-differences estimation that exploits the fact that the SSS and CSMBS programs were unaffected by the reforms.