The CMS site is the best place for your Medicaid billing questions. I just received my Medicare submitter ID and software access so I can bill Medicare providers and the CMS 855 is a great place to start for Medicaid billing approval. Once you have the form and the contact information, there should be numbers to call for assistance. The Medicare info line for my region has been most helpful and even assigned an analyst for future it help when I begin transmitting. I think Medicaid does the same.