I would go to talk to the people at the Medicaid office they can tell you what you need to do. It is in Lexington right by the Lizards Thicket. I am not sure the exact address but I could find it for you if you need me to.
For my kids I went to Child Enforcement Agency and they did everything for me. I just gave them my pay information and some other paperwork that they asked for. Your tax dollars pay for them so you sould use them. they take out like $25 or $50 A year and I think its so worth it not to deal with my ex