Musician donated to USC to help create endowed chair to recognize Dr Joseph Sugerman, who treated her for years Musician donated to USC to help create endowed chair to recognize Dr Joseph Sugerman, who treated her for years Legendary singer-songwriter Stevie Nicks has given $3m to the University of Southern California’s medical school to recognize the physician who has helped care for her voice throughout much of her career. The major donation supports the creation of an endowed chair in