The Partnership for Public Service honored the nine winners of this year’s Samuel J. Heyman Service to America Medals at a Washington, D.C. gala Thursday evening.

This video features Dr. Neal Young of the National Institutes of Health, winner of the Science and Environment Medal. Young saves lives through cutting-edge research and treatments for patients with bone marrow failure diseases, including the rare and once deadly blood disorder known as aplastic anemia.

The medals, popularly known as “Sammies,” are awarded to public servants who are making high-impact contributions to the health, safety and well-being of Americans.

Read about and view videos of the other winners below: