He's a pediatrician who works with children day in and day out, dedicating his life to providing medical care to children in need. But now, authorities say a Jacksonville doctor is charged with sexual offenses against two minors. Authorities arrested 39-year-old Dr. Gustavo Rios after getting a call from the Department of Social Services, where the juveniles’ parents reported the alleged incidents. Jacksonville police charged Rios with six counts of first degree sexual offense with a minor. Dr. Rios had been employed at the Jacksonville Children's Clinic for over six months, and from time to time also treated patients at Onslow Memorial Hospital. Authorities believe the alleged sexual encounters have been taking place since November 2006 to the present time. For now, Dr. Rios has been dismissed from his position at the clinic and is no longer allowed to treat patients at the hospital. It's simply disbelief for his coworkers at the clinic. Rios voluntarily surrendered his medical license over the weekend. He had his first court appearance Monday, where he is at the Onslow County jail under a $250,000 bond. The Jacksonville Children's Clinic says he worked in New Jersey before coming to Jacksonville and did extensive background checks that turned up nothing.