The health care delivery system in the United States is in transition.
Increasingly managed care plans are gaining in predominance. The prol
iferation of managed care systems will have an impact on the demand an
d requirements for physicians. This paper attempts to project and esti
mate requirements for physicians in 2000 and 2020, assuming that the h
ealth care system will continue to be dominated by managed care. The p
rojections are then compared to forecasts of physician supply under tw
o separate physician production scenarios. The authors discuss the ade
quacy of the future physician workforce to provide services required b
y a health care system dominated by managed care.