Oren often used an electronic massager with a long handle and flat, round head around the victims' thighs and buttocks, telling them that it would break up the fat, police said.
He would then move the massager to the patients' genital area and then sometimes inserted his finger into the patients, according to court documents.
"If you have an orgasm, that would burn around 200 calories," he is quoted in his arrest affidavit as telling one patient who told him she was uncomfortable.
He even tried to or did kiss several of the patients, according to police.
One victim said that Oren grabbed her breasts and said that although she may want to lose her stomach, she wouldn't want to lose her breasts, police said. Another claimed that after assaulting her and putting her hand on his penis, he told her that "the visit is on the house because you're so hot," according to court documents.
Oren was arraigned yesterday and posted $100,000 cash bail.
This is not the first time that Oren has been in trouble with the law. In the mid-1990s, he pleaded guilty to insurance fraud. He was sentenced to 24 months in prison and three years' probation and ordered to pay $272,000 in restitution, according to online court documents.
In one court document from 1997, Administrative Law Judge Joseph Riotto described Oren as "a highly untrustworthy individual."
However, Oren does have a valid license to practice medicine that was last renewed in December, according to the Pennsylvania Department of State.
Authorities urge other alleged victims to call Conshohocken police at 610-828-4032.