There has been a lot of confusion in the media lately regarding when and how often a woman should get a mammogram to check for breast cancer. But for older women, it’s simple: Women ages 50 to 74 should get a mammogram at least every two years, according to Richard Frank, M.D., who serves as medical director for WellPoint’s affiliated Medicare products. Even women 74 and older may want to continue getting a mammogram every two years, depending on their health and doctor’s recommendation.