During the night Paris Hilton spent under house arrest last week, she was reportedly visited by a plastic surgeon. At 4 a.m. last Friday, paparazzi agency x17 spotted a man leaving Hilton's Hollywood home, who confirmed to a cameraman that he was Hilton's doctor. The same man was spotted later that day outside the socialite's ill-fated court hearing. Turns out the man is Dr. Steven Hoefflin, a cosmetic surgeon with the moniker of "plastic surgeon to the stars," who has done work on Michael Jackson, Sylvester Stallone, Joan Rivers, Elizabeth Taylor and Janet Jackson. A source close to the Hiltons says Dr. Hoefflin is the hotel family's private doctor, who consults with them on medical issues - including cosmetic enhancements.