Gerbstadt first discovered art as an undergraduate at Millersville University. He graduated with a Bachelor of Fine Arts in 1992. He began creating large quantities of artwork and selling it in Old City Philadelphia every first Friday of the month. A following soon emerged and he began to leave his work on street corners in Philadelphia, New York, and San Francisco from 1994-2002. A documentary, titled David Was Here, describes his unique method of producing and disseminating his art. On December 28, 2007, Gerbstadt was run over by a tractor-trailer and was pronounced dead in the ambulance. Over a period of nine hours he received CPR and forty units of blood and was brought back to life. Since his accident, Gerbstadt has lived with post-traumatic stress disorder and constant pain. In 2012, he published One Breath at a Time, an autobiography that details his accident and recovery. Today, Gerbstadt is a full-time artist. He continues to exhibit his work in national and international galleries, such as the Magnez Gallery in Przeworsk, Poland. His work is included in private collections in countries such as Italy, Germany, Poland and England. He is also a motivational speaker and has had considerable media coverage in local newspapers, magazines, and television.