Nicholas A. DiNubile, M.D., is an orthopedic surgeon specializing in sports medicine in private practice in Havertown, Pennsylvania. He is a best-selling author and executive producer and host of an award-winning national PBS television special. DiNubile has served as orthopedic consultant to the Philadelphia 76ers NBA team and the Pennsylvania Ballet, and was appointed special adviser to the President's Council on Physical Fitness and Sports. He currently serves as ACE Chief Medical Advisor following a two-term stint on the ACE Board of Directors. DiNubile was inducted into the National Fitness Hall of Fame as well as the Philadelphia Sports Medicine Hall of Fame.