PEOPLE BEWARE OF DR WILLIAM GINZBURG'S OFFICE IN MARINA DEL REY, CA. HE HAS ANOTHER OFFICE TOO ON I THINK SEPULVEDA AND NATIONAL IN CULVER CITY, CA. THEY DO BOGUS BILLINGS AND AVOID YOU. THEY TELL YOU SERVICES ARE NOT COVERED THROUGH YOUR NETWORK PPO AND THEY BILL THOSE SERVICES AND GET REIMBURSED, THEN THEY WANT TO HOLD YOU RESPONSIBLE FOR THE BALANCE OUTSIDE THE CONTRACTUAL AGREEMENT. PEOPLE SEEM TO BE TELLING ME THIS ABOUT THIS OFFICE...TO BAD THEY DIDN'T TELL BEFORE I WENT THERE.