What is Utah State law regarding medical bill debt collection?

If a third party "debt collector" is calling you, I recommend that you contact a Utah attorney who represents consumers in Fair Debt Collection Practices Act cases based on some of the words and events you've described. You may or may not have an FDCPA case (I wouldn't know based on the brief facts you've described). But, it's worthwhile to briefly discuss your situation with an experienced consumer lawyer. A useful resource to find an attorney who represents consumers (and not any creditors against consumers) is www.naca.net. Good luck.