What is the satur of limitation in PA for Dr to go after monies owed to him?

I had an accident 5-6 years ago, the hospital tried to stitch me up but the ER Doctor couldn't do it so they called a plastic sergon to do it without my ok, I had no insurance at the time. Now 5-6 years later that Dr is going after me for the $$$. I got served by the sherif today with the judgment . I am not even an American citizen now or back then, I just got married 2 years ago & now waiting on my papers , I have nothing under my name & this all happened years before I got married & now the sherif said they want to take my hubbys stuff and auction it off to pay the Dept when we was not together as a married couple at the time I got stitched . When I had the accident I had so much narcotics in my system & had a seizure so I never consent to having this surgeon stitch me up 12 stitches and charge over $20,000!! I need help with this one !!