They also follow up as The Frau's "adult" daughter found out. The kid thought that because she did not have insurance that she could just go to the ER and "forget" to pay the bill.
She has to appear in court later this month where she will most likely have her future wages garnished to pay for her ER bill.
So yeah, the hospitals are going after people who don't pay their bills.. and good for them. There is no more "hope they will pay" They are going after the non-payers.