My Dr. is retiring &is sending me to a Pain Clinic that DOESN'T prescribe the medicine l've been on for 5yrs!?

l just need to know of where or WHAT else to do! The Pain Clinic that he is TRYING to send me to doesn't prescribe "oxycontin",l have a "plan" with the company that Makes it.(because of low income)Need Dr. in NC Triad Area,(Winston-Salem)that l can see that's LOW(l'm on food stamps)