Image DR. PRUDENCE HALL TALKS WITH SARAH “FERGIE” FERGUSON, THE DUCHESS OF YORK, ON THE OPRAH WINFREY NETWORK,/SCREEN GRAB FROM YOU TUBE/KAISER HEALTH NEWS. Doctor Disciplined Over Use Of Controversial Menopause Therapy A California doctor who touts bioidentical hormones and was endorsed by celebrities is sanctioned for putting clients at risk. Sep 12, 2018 Subscribe to menopause