The research question we pose is, Does a colorectal cancer (CRC) screening decision support tool offered in advance of primary care visits increase CRC screening completion rates? Our work aims to answer this question by evaluating the effectiveness of an MGB decision support tool to 1) promote informed decisions about CRC screening for average risk patients ages 45-75, 2) deploy a decision support tool as part of a primary care bundle questionnaire, and 3) support patients in completing their preferred method of CRC screening.