The Siteman Cancer Center Mammography Van will be at the following Schnucks stores and YMCA locations on the indicated dates. Appointments are required. To make an appointment, call 314-747-7222 or 800-600-3606 toll free. Van hours are 8 a.m. to 4 p.m. The examination fee will be billed to the patient, her insurance company or Medicare. Women should bring their insurance card to their appointment. The van is certified by the Food and Drug Administration and is sponsored in partnership with the Mallinckrodt Institute of Radiology. Dates and locations are subject to change.