Michelle is right, (if you are using your own PM system) you set up your office ally account under your billing service name and then submit all claims thru that name. We have one login for Solutions Medical Billing Inc. We submit over 70 providers under that one name, but all in separate files that we upload with the provider's name in the filename so that we can identify who they are for. If you are using Practice Mate, she described the difference in detail.
Michele