The United States continues to debate the adequacy of the current and future supply of physicians. This book presents projections of physician supply and requirements for 18 physician specialties using the Physician Supply Model (PSM) and the Physician Requirements Model (PRM) developed by the Health Resources and Services Administration (HRSA). This book also focuses on recent supply trends for primary care professionals, including information on training and demographic characteristics. Projections of future supply for primary care professionals, including the factors underlying these projections are examined, as well as the influence of the health care system's financing mechanisms on the valuation of primary care services. This book consists of public documents which have been located, gathered, combined, reformatted, and enhanced with a subject index, selectively edited and bound to provide easy access.