Help Jimmy with medical care

Hi, my name is Marie I'm asking for help with medical expenses for my Brother Jimmy .He was involved in a accident and got hurt and was air lifted to Englanger hospital in Chattanooga,TN were he will undergo surgery to try to fix and repair his leg .He will have to go through rehab if they are able to pice it back and does not have medical insurance coverage. Any and all help would be greatly appreciated!!