Dr. George Tyndall, 72, worked at USC for nearly three decades, and news of his arrest on 29 felony charges that could send him to prison for 53 years was welcomed by women who accuse him of misconduct and lawyers representing them.
Some, however, criticized the delay in filing charges after allegations against the doctor first surfaced in May 2018.
Authorities said Wednesday the investigation is continuing and more charges could follow.
"It was time to seek justice," Los Angeles County District Attorney Jackie Lacey said at a news conference.