The man accused of pretending to be a Park Avenue gynecologist apparently had an accomplice. The Daily News reports that, according to sources, Monsey resident Zalman Silber "tricked one woman into undergoing a pelvic exam by saying his friend, the Rockland County police officer, was a doctor who made house calls." Sources also say the cop ended up conducting the exam in Silber's house--with Silber watching. Prosecutors have charged Silber with third-degree sexual abuse and......