A bit off topic but may add to this
My daughter fell in my rented apartment and was taken to the hospital, they held here for 20 hours and did a CAT scan.
A few weeks later I got a letter on behalf of my insurance co, asking what other insurance we have, property, renters.
I researched it and it was coming from a company that buys the info from our medical insurance company and tries to get others to pay.
As it wasn't registered and did not see any basis for having to give them the info, I ignored the 3 letters that came. Haven't heard from them after.