A week after Dr. Richard Keller, a pediatric endocrinologist, was charged with receiving child pornography, another ­Andover man faced the same accusations.

William S. Thomas, 64, was arrested Thursday, charged with receiving child pornography. The US attorney’s office said he received sexually explicit videos depicting minors.

Thomas has a detention hearing scheduled for Sept. 24.

On Friday, Keller appeared in US court and waived his right to a detention hearing, agreeing to be remanded. Prosecutors have 30 days to bring an indictment against him.

Keller, the former medical director at Phillips Academy in Andover and a pediatric endocrinologist at Boston Children’s Hospital, was arrested last week after police allegedly found his name, e-mail, and billing address in the customer database of an overseas company that sold child pornography.

Keller spent almost two ­decades at Phillips Academy in Andover before the school ­declined to renew his contract in 2011. He was reprimanded for a series of alleged wrongdoings during his time as medical director, including watching adult pornography on a school computer, showing an “inappropriate cartoon,” and sending an “inappropriate voicemail” to a colleague, according to an ­e-mail sent to the school’s students, faculty, and alumni.

After his dismissal from Phillips Academy, Keller worked as a pediatric endocrinologist at Children’s Hospital and a part-time clinical instructor at Harvard Medical School.

Both institutions placed Keller on leave after his arrest.

On Wednesday, Keller signed an agreement with the state medical board promising that he would stop practicing medicine until the board takes further action on the case.