Consistent with the aims of the program of expanding healthcare access to the poor, we find that the increase in overall utilization is primarily driven by an increase in utilization by the MWS group. The utilization rate for the MWS group increases from 0.0711 to 0.0792, a difference of 0.0081 ( p < 0.01). For the previously uninsured, we find a modest, yet statistically insignificant increase of 0.0021 (~3 percent of baseline utilization of 0.0585). Finally, we find no significant change for the control group (−0.0004), which is consistent with the fact that these programs were left intact around the introduction of the 30 Baht program.