The rationale for a robust primary care physician workforce is based on 2 key aspects of modern health care delivery: health maintenance and continuous care of active, often co-occurring, diseases (3). In the former case, primary care offers the main opportunity to deliver such essential disease prevention services as cancer screening, vaccination, and lifestyle counseling to asymptomatic individuals who do not regard themselves as patients. In addition, primary care facilitates early identification and treatment of common diseases, such as high blood pressure, glucose intolerance, and hypercholesterolemia, that, if untreated, compromise health and productivity and can lead to costly complications. Primary care also plays a vital role in the delivery and coordination of care for individuals with 1 or more active chronic diseases. Improving the population's health requires an accessible, high-quality primary care system (2). The implied mandate of the PPACA is for more and better primary care.