The Society for Critical Care Medicine has advocated for intensivist lead multi-disciplinary critical care for our 30 years; growing evidence supports their assertion. It is estimated that if intensive care unit (ICU) physician staffing (IPS) was implemented in non-rural United States hospitals, 53,000 lives and $5.4 billion would be saved annually. Despite the benefits of hiring physicians specialized in the treatment of critically ill patients, many hospitals worry about their ability to hire critical care physicians to staff their ICUs. In this essay, we discuss issues regarding the future supply of and demand for critical care physicians beginning with an overview of how to evaluate physician supply and demand in general. We then discuss supply and demand for critical care physicians considering emerging issues such as the Leapfrog standard that may impact estimates of the supply and demand for critical care physicians.