OK, if ALL she was receiving was Medical there may not be any fraud involved.
All children are entitled to medical care if thier parents cannot provide it for them. I don't really get bent about my tax dollars being used so that children can get proper medical care.
When a person applies for medical they are asked about thier income and whether or not they receive child support.
they are not denied because they ARE receiving, but the state can help them get it if they are not. Also in most states if mom wants medical for herself she MUST co-operate with the state.
technically speaking, unless the OP says otherwise, due to the lack of child support not being already in place, legally he may not even BE the father.
And he also does nto state if he himself has affordable health insurance available for his children, if that is the case his children ARE eligible regardless of his child suport status.
Also in most states as long as children meet eligible requirements, medical benefits are not repayable as welfare cash payments are.
"It is easier to build strong children than repair broken men." Frederick Douglas