Medically underserved women in the Greater Denver Metropolitan Area had low rates of routine repeat mammograms in the latter 1990s. "Increasing Mammography Adherence among Medically Underserved Women" was designed to increase annual rescreening among medically underserved populations living in this area. Four community-based organizations collaborated to implement this 5-year study. A culturally modified navigator model including both face-to-face and telephone formats was used to facilitate mammography for African Americans, Latinas, Native Americans, and poor White women who had not been rescreened in more than 18 months. The navigator-implemented intervention was statistically significant at the 0.05 level for increasing rescreening.