LOS ANGELES — A former University of Southern California doctor accused of sexual misconduct involving hundreds of patients was arrested on Wednesday, the Los Angeles Police Department confirmed.

Hundreds of women said that Dr. George Tyndall, who was the longtime head gynecologist of the university’s health center, sexually abused them and that school officials did not adequately address their concerns.

The Los Angeles District Attorney’s Office said that Dr. Tyndall faces charges of sexually assaulting 16 young women who had gone to the university’s health center for annual exams or other treatment between 2009 and 2016.

The women, the office said, were between 17 and 29 years old at the time of the alleged incidents.

Dr. Tyndall was charged with 29 total counts of sexual penetration and sexual battery by fraud. If convicted, he faces up to 53 years in prison.