OK, I passed on your information and some other facts to the counselors and they want to continue to bill as their own practices but just market and combine for rent, etc. Now, my question is that one of the practitioners wanting to join efforts will be part time and will continue to work with another group where he already bills as part of that group. One of the insurance companies is tell them they need to get an NPI 2 number for him to bill as part of their group but they aren't going to bill as a group. Can he bill just under is own Tax ID/NPI or is there something else that needs done since his name will already be connected with a group #? I am confused. Thank you for whatever help anyone has. :-)