Here's the answer from Dr. Paige Partridge:
"At our office, we tend to go by the guidelines of the American Cancer Society. There has been some confusion in the last few years with some recommendations that have come out. But we follow the guidelines where between the ages of 40 and up until the age of 70 or after that you have an annual mammogram. Between the ages of 30 & 40 definitely have a clinical breast exam with your physician. In some cases you would need a mammogram during that time based on your risk factors. Prior to that, you'll just need your monthly self breast exams."