Mercy Clinic OB/GYN - Medical Tower B Suite 4005B 621 S. New Ballas Road, Tower BSuite 4005BSt. Louis, MO, 63141Mercy Medical Tower B View Phone 314-251-5016 Fax: 314-567-1846 View Website Experience & Reliability Click to schedule an appointment About Photos & Videos Reservation Send to My Email Send to My Phone Print this Page