What is already known about the topic? Use of electronic health record referrals is an effective way to increase awareness of and participation in evidence-based programs offered in community settings. What is added by this report?Our evaluation adds to the body of knowledge about contextual factors that affect the implementation and effectiveness in sustainability of referral processes and health care and community-based partnerships.What are the implications for public health practice?Although referral interventions increase awareness of and participation in community-based programs, the context in which referrals are implemented greatly influences outcomes, and contextual factors should be an integral part of the planning and execution processes.