David Lehmann, MD, provides medical care to the homeless in Syracuse and Onondaga County. He accompanies John Tumino, the founder of In My Father's Kitchen, who delivers meals to the homeless from a van. Lehmann is a distinguished service professor of medicine at Upstate who teaches medical students to be comfortable with the uncertainty that is part of their chosen profession. An internist and a clinical pharmacologist by training, Lehmann talks about how, and why, he provides care to people who live on the streets and his goals for this effort. For a video featuring Lehman and Tumino out on a house call to the homeless, click here.  Additional info