By David Spunt

BUCKS COUNTY, Pa. (CBS)–Bucks County authorities say Penn Medicine nurse James Close secretly photographed and videotaped a 17-year-old girl while she was undressed during a dermatology appointment at a doctor’s office in Yardley.

“It’s very disturbing. You have a trust with people in the medical profession,” said Matt Weintraub, Bucks County District Attorney.

“We are appalled by the action of this former employee and we are cooperating fully with the investigation,” said Susan Phillips, a spokeswoman for Penn Medicine.

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But Weintraub tells Eyewitness News it doesn’t stop there. He says close did the same thing to seven other women.

“I’m afraid there may be more,” says Weintraub. “That’s my concern at this point. We want to make sure we take care of the victims that we have. Make them feel safe”

According to charging documents, the 17-year-old was undressed in a treatment booth when she noticed silver iPhone on the ground. She told authorities it was recording. Documents reveal police found 18 videos on the phone.

Close was originally charged on Feb. 13 with four counts of recording the 17-year old.

Forty-three additional charges were filed on Monday for the other seven women believed to be victims.

“We’d like to make a plea to the public that if anyone was seen by this dermatological practice and they feel they may have been a victim they should come forward to Lower Makefield Township Police Department,” said Weintraub.

Close remains behind bars and will have a preliminary arraignment on Tuesday.