The Eidsivating court of appeal in Hamar found the doctor guilty on four counts of rape, three counts of attempted rape and for performing sexual acts with a minor.
The doctor, commonly known in Norway as the 'MMS doctor' because of his use of his phone to film the sex acts, was found by police to have pressurized around 20 young girls into having sex with him.
The court said there was a significant risk that the doctor would offend again if he was released and that a custodial sentence was merited. The doctor's lawyer, Harald Stabell, said he was disappointed by the sentence:
"But he's not exactly surprised," he told newspaper Østlendingen.no, pointing to evidence given by experts that the doctor was a paedophile and sadomasochist. He said there was a good chance that the case would be taken up by the Supreme Court.
The man was sentenced to ten years imprisonment earlier in the summer by Hedmarken district court, a sentence now upheld by the higher court.