Dr Adam Levinson ,who used spy cam to look up women's skirts on subway had 19 pervy videos on device

New York - A Mount Sinai Hospital doctor busted for using a pen camera to peek up women’s skirts had used the pervy tactic before, law enforcement sources said Friday.

The tiny camera Dr. Adam Levinson was carrying when he was arrested in Union Square on Tuesday had 19 video clips stored in its memory — all of women being followed on the street and in subway stations, the sources said.

The footage included recordings where the camera was pointed up the dresses of at least two women, the sources said. The images appeared to be recorded on different days.

Levinson, an assistant professor of urology at the hospital’s school of medicine, allegedly clipped the pen to a folded-up newspaper so he could aim the lens up women’s skirts.

The doctor was busted after a witness spotted him taking the pictures on a train.

Investigators have seized computers, cameras and “everything that can hold a digital media file” from his home and office.

By Joe Kemp / NEW YORK DAILY NEWS