December 2020—The National Academy of Medicine estimated that approximately 30 percent of U.S. health care spending constitutes nonvalue-added waste. This waste may be generated through unnecessary laboratory tests and services, inefficiency of care delivery, excessive administrative costs, and high prices. A goal of medical educators is to inform undergraduate medical students about health care management and health care delivery to make them better stewards of cost-effective, high-value care (HVC). The authors described the results of a needs analysis to inform the design of an online case-based educational tool for teaching laboratory stewardship to medical students. To this end, they conducted a needs assessment that included semi-structured interviews of core clerkship directors and residency program directors, a national survey of the Undergraduate Medical Educators Section of the Association of Pathology Chairs, and a review of existing online resources for teaching HVC. Their results showed that all of the core clerkship directors and residency program directors thought that teaching laboratory stewardship as part of the undergraduate medical education (UME) curriculum was important. The two major themes that emerged from the analysis to enhance laboratory stewardship education were appropriate test ordering and interpretation. The authors also found several organizations that provide HVC education through online modules or clinical cases.