There’s been a trend for celebs being radically open about their cosmetic surgery — but some stars are still CIA-secret about their work.

Page Six has recently heard about one star who is rumored to get delivered to her dermatologist in a UPS crate, so that nobody sees her in the vicinity of a clinic, and we’re told that there’s one surgery center in Hollywood that has no signage, so stars can slip in undetected.

Famed New York surgeon Dr. Ryan Neinstein tells us that — while not everyone is quite that extreme — many stars and their doctors have methods. For example, Neinstein admits that he offers surgery at night, private entrances for highly sensitive clients so they never have to risk being seen in a waiting room, and unmarked recovery rooms. Neinstein says there’s also been “a deman

See Full Page