To make sure I understand your question lets clarify insurance. There is the mega-company insurance (insurance A) that I submitted the claim to. Then there are the two smaller insurance companies, or networks, we'll call insurance B and insurance C.
The provider has chosen to accept payment from insurance A and has not collected any payment from the patient. The provider has chosen not to accept payment from insurance B and insurance C. These offers are the ones that come by fax trying to entice the provider by offering a speedy reimbursement, but at a lower rate.
I come across these offers being sent to providers all the time. How come you never see them?