Identify the ERA Payer Number from the ERA Posting Process
You can find the ERA payer number in the ERA 835 file that you receive from the trading partner. The ERA payer number can be for a payer or for an alternate payer. The number must be entered on the Practice tab of the Payers master file for the payer and on the Alt payer Transaction options tab of the Payers-Alt Payers master file for alternate payer before importing the ERA 835 file.