United States Supreme Court rules against Medicare providers in cost reimbursement case. Shalala v. Guernsey Memorial Hospital.

In the long run, the impact of Guernsey will depend on the interpretation and application of the decision by HCFA, the Provider Reimbursement Review Board, and the courts. If HCFA interprets the decision as a signal that the Supreme Court is willing to grant federal agencies broad latitude to avoid the rulemaking requirements of the APA, providers may have fewer opportunities for formal input into payment policy issues under the Medicare program. The impact of the case may well go beyond cost-based reimbursement issues and affect all aspects of the Medicare program.