Long-term trends in our economy and social structure are radically affecting the supply and demand for health services. Population increases, both generally and in the over-65-years-of-age bracket, growing ratio of nonwhites to whites, increasing proportion of women, increasing urbanization, industrialization, educational levels and per capita income are only some of the major factors affecting the demand for health services. Major developments in the science, technology and organization of medical care are and will continue breaking traditional patterns in rendering such care, and definitely point in the direction of multidisciplinary and institutional makeup in the delivery of health services. Changes in the financing of medical care are bringing in a foray of public programs sponsored by all levels of the government, contributing to the unique American pluralistic health care economy with its “mix” of public and private activities. Questions, intended to point up some of the more far-reaching issues, are appended to each section of the paper.