The fees you posted are pretty similar to just about any Dr. you will go see except for a few that are much more expensive for some reason. As for insurance I have no idea what to tell you. My insurance didn't cover it so it came right out of my pocket. My advice to you would be to call around to other Dr.s and see if they will accept your insurance.
Although if you are already clean I don't know why you would want to go on a narcotic such as suboxone. I know you can live a better life on it than on opiates and it takes away cravings but in the end most people are using suboxone to get clean in the first place. If you are already there why put yourself through another withdrawl unless you are trying to stay on it for life.
If you were once clean for 3 years you obviously know as time goes by it gets better and cravings begin to diminish. You just need to follow some kind of regime such as meetings, working out, etc. Something to fill that void. Give it time
I wish you luck.