( CNN ) -- A Delaware pediatrician pleaded not guilty Wednesday to 471 felony counts in the alleged child abuse of his patients , according to a spokeswoman for the state Department of Justice . Dr. Earl Bradley , 56 , was arrested in December on charges that include rape , sexual exploitation of a child , endangering child welfare and assault . Bradley , who had a practice in Lewes , Delaware , is accused of victimizing 103 children -- all girls except for one boy . Delaware Attorney General Beau Biden has said the charges are based on `` video and digital evidence '' seized from Bradley 's home and medical practice in December . Bradley also has medical licenses in Pennsylvania , New Jersey and Florida . Authorities have said they have contacted officials in those states . The next step in the proceedings is a case review May 17 , according to Kerry Angell , a spokeswoman for the Delaware Department of Justice .
Dr. Earl Bradley faces 471 felony counts , a state justice department spokeswoman said . Bradley , 56 , is accused of victimizing 103 children . He was arrested in April and charged with sexually assaulting 10 boys between the ages of 11 and 15 over several years from 1997 to 2002.