The hockey jersey Dr. Cox wears in this episode is for the Motor City Mechanics of the UHL. They played from 2004-2006 and had multiple NHL players on their roster during the 2004-2005 lockout including Chris Chelios, a jersey Dr. Cox often wears.
JD locks Eliliot's window to stop a messenger monkey from telling Turk he kissed Carla. Zach Braff would later play a messenger monkey in Oz, Great and Powerful.