I don't see where you will have any problems using Express Scripts as your pharmacy, I have for 9 years as Standard and now For Life. They mail my prescriptions where ever I need them. One is a controlled substance and another is one that needs cold shipment. The cold shipment comes overnight from their specialty division and the controlled comes to the Post Office I tell them to send it to, signature required or to FedEx office signature required (I just pay more for delivery on this). I have always got my deliveries within a day of when they said. To me it seems it would be much harder having to use a Walmart or CVS and make sure the have what I need on hand. Good luck on working it out to suit you.