Homeless people line a street outside of a shelter in downtown Miami on Oct. 1, 2009. Eighteen years ago, Dr. Pedro Jose Greer Jr. opened the Camillus Health Concern, a clinic that provides medical care to homeless and low-income patients. It serves 10,000 patients in Miami a year.
A man walks by the Camillus Health Concern, a clinic that provides medical care to the homeless and low income patients in Miami.
Dr. Pedro Jose Greer, left, examining Medicaid patient Kenneth Caldwell, 50, in his office at Mercy Hospital in Miami on Sept. 2, 2009. Greer has made a career of offering treatment without regard to patients' ability to pay, and it's one reason he received a 2009 Presidential Medal of Freedom.
Dr. Pedro Jose Greer Jr., in a dark jacket, speaks with students at Florida International University's new medical school in Miami on Aug. 27, 2009.
Henry Wright Jr., 43, waits to see a doctor at Camillus Health Concern in Miami on Sept. 8, 2009.
Dr. Pedro Jose Greer, right, prepares to do a colonoscopy at Mercy Hospital in Miami.
A board at Mercy Hospital in Miami marks off the number of surgeries performed on the morning of Aug. 26 by gastroenterologist Dr. Pedro Jose Greer.
President Barack Obama presents the 2009 Presidential Medal of Freedom to Dr. Pedro Jose Greer, the assistant dean of academic affairs and Florida International University School of Medicine, during an Aug. 12 ceremony at the White House. Greer is the founder of Camillus Health Concern, an agency that provides medical care to over 10,000 homeless and low-income patients each year in Miami.