Calderon has pleaded innocent to the charges against him and is awaiting trial next year. In another scheme, doctors received illegal kickbacks for referring patients to Tri-City Regional Medical Center in the Los Angeles suburb of Hawaiian Gardens, according to prosecutors. James Canedo, the 63-year-old former chief financial officer of Pacific Hospital, pleaded guilty in September to fraud and other charges. Orthopedic surgeon Philip Sobol, 61, has agreed to plead guilty to conspiracy and other charges, prosecutors say. Chiropractor Alan Ivar was charged on Tuesday with conspiracy and other charges and, in a plea agreement, has admitted steering patients to Pacific Hospital in exchange for a monthly retainer, Mrozek says. Paul Richard Randall, 56, a health care marketer previously affiliated with Pacific Hospital and Tri-City Regional Medical Center, has pleaded guilty to conspiracy to commit mail fraud.