This would depend on who is billing for these services. If it is the insurance company, then all co-pays and coinsurance are the responsibility of the policy holder, which in this case would be your husband. Any commitment from the e-wife to pay for these share-of-costs would not be the concern of the insurance company. If the bills are coming from the physician, and the e-wife authorized treatments, she should be legally responsible for paying these bills. But, now that the son in 18, he will be the responsibility party in signing for treatment.
Answered: Apr 28, 2010