Community health workers (CHWs) are not a new role in health care. However, in the last several months, we've received more questions about how to start CHW programs than ever since launching this blog. Whether it's because of Medicaid expansion taking hold across the country or an increasing awareness of social determinants' impact on outcomes, provider organizations are getting serious about addressing complex patients' holistic needs in a sustainable way. CHWs, the non-clinical staff type specializing in community knowledge and patient trust, have potential to meet this need—and generate a positive ROI.