Hello there -
Did you ask the doctor (that was treating you) if he had any suggestions as to another physician, etc.?? It couldn't do any harm to ask if him (or his staff) whether they may have some insight as to a person or clinic that would actually treat you. Mary is right, finding a place can be difficult, but it's not impossible. Sometimes you just have to do things the old fashioned way and call around. No matter what, hang in there and don't get discouraged! You'll be in my thoughts ... take care!
No real advice but this is becoming a chronic problem with doctors not wanting to mange chronic pain. My pain clinic said that when they have no more procedures for you they want your primary to manage it ... but the primary doesn't want to oversee narcotics long-term either. Try to find a reputable clinic that's been around a long time. I'm choosing to come off and live with the pain, at least for now, rather than risk no one writing my scripts. I can see the writing on the wall in this area and I just don't want to be stuck. And methadone is a very serious med to have managed. It can be very difficult to come off.
Best of luck.