The evolution of support for safety-net hospitals.

The federal government, mostly through the Medicare and Medicaid programs, has created and maintained a set of structural mechanisms to support uncompensated care and clinical education: disproportionate-share hospital payments and direct and indirect graduate medical education payments. This paper provides a history of how these traditional supports have evolved. We note that the need to reduce federal and state spending threatens the level of these payments, while changes in the health care delivery system highlight a range of design and technical inadequacies in the current support mechanisms.