The phenomenon of wage discrimination between primary care physicians and specialty care physicians has produced a disparity in the quantity of each physician that reduces the effectiveness of healthcare in the United States. In order to understand why such a disparity exists, this study investigates the wage determinants for each physician and if these determinants influence the choice of a physician to specialize or not. Using data from the 2004/2005 Community Tracking Survey, this study uses regression analysis to determine the value of the determinants of physician income. This study finds that not only is there an income gap between physicians, but there also exists a gender gap among each type of physician.