Senate GOP Blocks Measure Ending AI Medicare Pilot, Preserving Prior Authorization in Original Medicare
Updated
Updated · STAT · Jul 17
Senate GOP Blocks Measure Ending AI Medicare Pilot, Preserving Prior Authorization in Original Medicare
3 articles · Updated · STAT · Jul 17
Summary
A Senate vote split along party lines on Thursday kept Medicare’s WISeR pilot alive, allowing the Trump administration to continue using AI to approve or deny some care requests.
The Democratic-led measure sought to bar prior authorization in original Medicare, where federal law now permits it only for some outpatient services, certain home-use medical equipment and non-emergency ambulance transport.
WISeR faces opposition from the American Medical Association and senior groups including AARP, which object to expanding prior authorization into a program where it has been rarely allowed.
The failed vote leaves open the possibility that Republicans could push prior authorization further into original Medicare, widening AI’s role in coverage decisions.
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2026 Senate Decision Keeps WISeR AI Pilot in Medicare: Delays, Denials, and the Future of Patient Care
Overview
On July 16, 2026, the Senate held a crucial party-line vote that preserved the CMS’s AI-driven WISeR Model, an initiative introducing new prior authorization requirements in traditional Medicare. This outcome was reached after Republicans blocked a Democratic-led resolution, which aimed to terminate the WISeR program using the Congressional Review Act. The resolution gained momentum when the Government Accountability Office determined that the CMS notice establishing WISeR qualified as a rule under the CRA. As a result, the WISeR Model continues to operate in six states, keeping its AI-based approach to Medicare coverage decisions in place.