CMS's WISeR AI prior authorization pilot faces operational delays and errors, snagging patients and providers

The Centers for Medicare & Medicaid Services' WISeR pilot, an artificial intelligence system designed to automate prior authorization decisions for certain Medicare services, is encountering significant operational problems. Reports indicate the system is generating errors and delays, trapping both patients and providers in administrative limbo. The pilot, which began earlier this year, aims to speed up approvals but is instead causing backlogs and requiring manual intervention from CMS staff. For practices submitting prior auths to Medicare, this means unpredictable turnaround times and potential care delays for beneficiaries. The agency has not announced a pause or fix timeline. While the pilot is limited in scope, its troubles highlight the risks of relying on new automated systems for time-sensitive workflows. Track the status of any WISeR-related authorizations extra closely and have a process to flag delayed cases for manual follow-up with the Medicare Administrative Contractor.