Association of gynecologic oncology versus medical oncology specialty with survival, utilization, and spending for treatment of gynecologic cancers

•2/3 of advanced gyn-cancer patients receive chemotherapy from medical-oncologists versus 1/3 from gynecologic-oncologists.•Gynecologic-oncology chemotherapy-based care in ovarian cancer is associated with improved OS and equivalent spending.•Patients receiving chemotherapy from gynecologic-oncologists were treated by higher volume providers and had less delays.