Ben C, Li M.D.Attending and Clinical Associalte ProfessorObstetrics Gynecology Education: UCSF School of MedicineMain Office:415-353-2566 UCFS Medical Center 490 Illinois St Box 0132 San Francisco, CA 94143 Additional Office: 1855 Fourth St., Second Floor San Francisco, CA 94158 Additional Office: 490 Illinois St, Box 0132 San Francisco, CA 94143