Rendering Provider Mismatch
Published: August 31, 2025
Last updated: September 01, 2025
Rendering provider (as listed on ERA) and Rendering provider (based on signed note) don’t match, why?
Location in the system: Billing → Claims → Export to Excel
If both cells have a value but do not match, the first step is to compare the original 837P (claim submission) with the corresponding EDI835 (remittance).
- The 837P lists the rendering provider you submitted with the claim (typically the individual clinician - a `*1*` before the name means person).
- The EDI835 shows the rendering provider the payer returned with the payment (sometimes an organization or alternate provider ID - `*2*` before the name means organization).
If these do not align, this usually points to a payer-side 835 formatting issue or a provider master/aliasing quirk on the payer’s system. It is not an error with how you submitted the 837P. A mismatch can also occur when a supervisee provides services under a supervisor's NPI number.
Next steps:
- Review the original 837P and 835 files side by side to confirm what was submitted versus what was returned.
- If needed, contact the payer for clarification on how they are formatting the rendering provider field in the 835.
Special case:
If the Rendering provider (based on signed note) is blank but the Rendering provider (as listed on ERA) has a value, it typically means the claim has not yet been matched to an invoice in Ambiki’s system.
If the Rendering provider (based on signed note) is blank but the Rendering provider (as listed on ERA) has a value, it typically means the claim has not yet been matched to an invoice in Ambiki’s system.
- To resolve this, navigate to the claim and select Actions → Match claim line items to invoices.
Kevin Dias