Karen, Sorry for the delay! Last few days flew by. Anyway, Charlene is right, contracts are important. Honestly if you are already billing for mental health, I don't think our mental health book would help you much. It is for someone looking to get into mental health who hasn't had much experience in it before. I'm thinking that since you are looking to get more clients maybe the marketing book would help. It has 12 methods for getting new clients. Also, we just put out the first credentialing book on Medicare. We have found that our credentialing service gives us lots of referrals for the billing. If they are just getting credentialed they usually haven't thought much about how they will do the billing. Anyway, it sounds like you have a good start and are getting some important things straightened out. Best Wishes!Michele