Smiling nurse holding up a "Free Health Screenings" signTo see if you are eligible for a free mammogram, please call (307) 633-6863, (877) 286-0907 or (800) 263-1296. The state of Wyoming Cancer Program’s mission is to reduce the burden of cancer through screening. The Breast Cancer Screening Services are paid for through funds from the Centers for Disease Control and Prevention National Breast and Cervical Cancer Early Detection Program.