Hundreds of homeless metro Denver residents end up in hospitals for emergency treatment of hypothermia and frostbite, according to Dr. Joshua Barocas, an internal medicine and infectious disease physician at the University of Colorado’s Anschutz Medical Campus who sees homeless patients at the Denver Health Medical Center. At one metro Denver hospital where an informal study was done during a cold month last winter, 49 patients were treated for hypothermia and frostbite, Barocas said.