Elliot donated his kidney to his cousin and the entire surgery, including pre-op and post-op visits, was meant to be covered by his cousin's insurance. The transplant center assured him they would take care of all the billing. However, the bills started to arrive. First a couple of minor laboratory bills totaling a couple of hundred bucks. Then a $13,000 bill for the anesthesia. The anesthesiologist practice, NorthStar Anesthesia, threatened to send him to collections. Later, Northstar confirmed that he would not be liable for the bill and that his cousin's insurance would be billed. Nevertheless, advocates for kidney donation said they receive similar complaints and improper medical billing can be a highly problematic barrier to live donors coming forward.