They are not part of the AARP MedicareRx network but they told my elderly mother that she was. When I called and asked if they knew if they were part of this network they said they couldn't tell me until they swipe the card. I told the pharmacy member that I called AARP and found out they are not part of the network and the response was, "you answered your own question then." Make sure you check with your PartD supplemental pharmacy provider and don't rely on what is told to you at the pharmacy or you may be surprised to find out you're not getting your supplemental insurance benefit.