What is the payer ID for GMP Employers Retiree Trust?

The payer ID for GMP Employers Retiree Trust is GMPER. Alternate IDs seen across clearinghouses include 00121, 23641, 4159.

Does GMP Employers Retiree Trust require ERA enrollment?

Yes. GMP Employers Retiree Trust requires a separate ERA (835) enrollment before electronic remittances flow, and setup typically takes several weeks.

Which EDI transactions does GMP Employers Retiree Trust support?

GMP Employers Retiree Trust is reachable through clearinghouses for electronic remittance.

GMP Employers Retiree Trust

Summary

GMP Employers Retiree Trust is a healthcare payer. Claims route under payer ID GMPER, with 3 alternate IDs in use across clearinghouses. Through clearinghouses it supports electronic remittance (ERA); ERA enrollment is required and takes several weeks.

At a glance

Payer ID: GMPERAlso seen as 00121, 23641, 4159

Clearinghouse transaction setup

Which EDI transactions this payer supports, and how long clearinghouse enrollment typically takes when it is required.

Transaction	Enrollment	Typical setup
ERA / remittance (835)	Required	Several weeks

Common questions

What is the payer ID for GMP Employers Retiree Trust?: The payer ID for GMP Employers Retiree Trust is GMPER. Alternate IDs seen across clearinghouses include 00121, 23641, 4159.
Does GMP Employers Retiree Trust require ERA enrollment?: Yes. GMP Employers Retiree Trust requires a separate ERA (835) enrollment before electronic remittances flow, and setup typically takes several weeks.
Which EDI transactions does GMP Employers Retiree Trust support?: GMP Employers Retiree Trust is reachable through clearinghouses for electronic remittance.

Compiled from public payer resources and clearinghouse catalogs. Details change often, so confirm with the payer before relying on them. Spot something out of date? Tell us and we will fix it.