In 1995, Schadler received first place in the National Headliner Awards and an Emmy nomination for his "PrimeTime Live" story detailing the failure of modern science to help people cope with dying; and in 1994, he was awarded the National Environmental Media Award and an Emmy nomination for his ABC News "Day One" investigation on illegal wildlife trade, and the National CINE award for his "PrimeTime Live" profile of small-town America as seen through the camera lenses of a professional photojournalist.
In 1988, Schadler was awarded UPI's Outstanding Individual Achievement Award for both New England and the United States. In addition, he was named the first recipient of the Dennis Kauff Memorial Award for Boston's outstanding broadcast reporter. "Teenagers in America," the week-long series Schadler prepared for "World News Tonight," received a number of awards, including Planned Parenthood's Maggie Award.
Schadler is a graduate of Michigan State University. He graduated magna cum laude from the Newhouse School of Communications, Syracuse University. He also received a law degree from the Syracuse University College of Law.