Based upon what you have written about the woman that gave birth to the minor child can be charged criminally with child abandonment and possibly identification theft as to the woman whose name was used by her. The issue I see is that potentially the statute of limitations for any criminal charges that could have been brought may have run.Medical personnel could be disciplined by the given state's medical association or other licensing agency. I suggest that legal counsel possibly be consulted regarding the matter that you have written about.