Our objective was to identify the percentage of marijuana-using caregivers who have been asked about their marijuana use by their child’s pediatrician. Data was collected from a cross-sectional, convenience sample survey study of 1500 caregivers presenting with their children to the Children’s Hospital Colorado Pediatric Emergency Department between December 2015 and July 2017. Of the 1500 caregivers surveyed, 167 (11%) reported using marijuana. When asked if their child’s pediatrician had ever inquired/counseled about caregiver marijuana use, 165 marijuana-using caregivers responded; 149 caregivers (90.3%) reported “no,” 9 caregivers (5.4%) reported “yes,” and 7 caregivers (4.2%) reported “unsure.” We concluded that of marijuana-using caregivers, only a small percentage indicated their child’s pediatrician had inquired about caregiver marijuana use. This suggests pediatricians are not engaging caregivers about marijuana use and the subsequent secondhand marijuana smoke exposure for children. The continued rise of marijuana use among parents makes this research of public health importance.