Social determinants of health (SDOH)—the root causes of health disparities—often fall outside the scope of traditional clinical care. In this discussion, we argue that financial interventions, particularly cash assistance programs, can play a role in improving health outcomes by addressing SDOH. Drawing on lessons from established public health approaches, we explore the concept of “Money as Medicine,” which reframes cash assistance as both economic relief and a meaningful healthcare intervention, directly impacting physical and mental well-being. To build healthier communities, we recommend integrating targeted cash assistance programs into healthcare systems. We explore key evidence, highlight successful models, and propose pathways for integration.