Dr. Eva Andersson-Dubin -- a renowned physician at Mount Sinai hospital as well as a former model -- was featured prominently in the Epstein files ... and now the hospital is turning over every leaf to get to the bottom of the nature of their relationship. A spokesperson from the Mount Sinai Health System tells TMZ ... "Jeffrey Epstein’s actions are abhorrent, reprehensible, and stand in direct opposition to what Mount Sinai believes in and stands for as an institution and as medical