I know that my employer currently provides dialysis treatments 3 times a week for an "undocumented person." We are not reimbursed by any agency, though our social worker has been attempting to get someone to claim this person and help with the costs. At this time, they are simply free...and have been for over 6 months. I suppose we get a write-off on our taxes...but that would be it for now. Of course, as a healthcare system (not just the dialysis clinic), we write off several millions per year. The last year I heard figures was 2007, that year it was between 17 and 18 million.