Medicare Managed Care Plans: Many Factors Contribute to Recent Withdrawals; Plan Interest Continues

Pursuant to a congressional request, GAO provided information on managed care plans' decisions to leave the Medicare program or to reduce the geographic areas that they serve, focusing on: (1) plans that receive capitated payments; (2) the patterns of plan and beneficiary participation in managed care; (3) factors associated with plans' decisions to enter or leave the Medicare Choice program; and (4) changes in plans' benefit packages and premiums.