If you think unity is bad try the Mayo clinic. I received a bill from them in June of 2008 for lab work performed in December of 2007. After a call to my insurance company it was revealed they had never billed my insurance company.
You can not receive payment if you do not send out the bill.
I can't believe you people still go there. I go to Mercy services in West Liberty. Well worth the drive and you wait only about 10 minutes to get in. Excellant doctors. I had my fill of Unity a long time ago.