The billing method can be changed from the Insurance Company Information screen. To navigate to Insurance Company Information screen, go to Setup and then click on Insurance/ plan
On the Proceeding “Search Insurance Company” window

1. Enter the Insurance Company Name for which the billing method need to be changed and click on search
2.From the search result click on the Edit button corresponding to the desired Insurance Name.

On the Proceeding Insurance Company Information screen select the appropriate billing method and click on Save