just make sure your team is aware of the criteria that medicare requires for payment, we started too late and medicare even after several appeals by optune rejected it for their payment. Optune assured us that we would not get a bill and medicare repeatedly told us this as well. We have not received any payment but optune i think should have known the criteria from the beginning which is it has to be started within a short period following concomitant radiation and chemo. Make sure you are clear with optune about this. We had opted to do a cruise with family so we didn't feel ready to start it until 3 months after the soc was completed medicare rejected their appeals, stating it has to be i think within 6weeks, not sure of exact time , but we were well over that criteria. good luck