Lawmakers Seek to Block CMS's AI-Powered Prior Authorization Model

Democratic legislators in the Senate and House of Representatives have introduced resolutions aimed at overturning new Medicare prior authorization requirements under the Wasteful and Inappropriate Service Reduction (WISeR) model. This move comes a week after the U.S. Government Accountability Office (GAO) determined that the program should have been submitted to Congress for review before implementation.

Sens. Ron Wyden (D-Ore.), Maria Cantwell (D-Wash.), Richard Blumenthal (D-Conn.), and Kirsten Gillibrand (D-N.Y.) called for the invocation of the Congressional Review Act (CRA) through a resolution. A companion resolution was introduced in the House by Reps. Suzan DelBene (D-Wash.) and Greg Landsman (D-Ohio). The GAO's determination means legislators have 60 days to force a vote on the resolution of disapproval to repeal the WISeR model.

The WISeR model, launched by the Centers for Medicare & Medicaid Services’ Innovation Center (CMMI) last July, is a year-long pilot program running in six states: Arizona, New Jersey, Ohio, Oklahoma, Texas, and Washington. It aims to expedite prior authorizations using artificial intelligence for 13 medical services deemed "low-value" or vulnerable to misuse. The model began on January 1, 2026.

Legislative Pushback and Patient Concerns

In a statement, Rep. DelBene described the WISeR model as a "dangerous program that is denying care to seniors." She emphasized the need for Congress to take action, stating, "We must ensure that Medicare beneficiaries receive the care they need without unnecessary delays or denials."

The use of artificial intelligence in healthcare decisions has raised significant concerns among patient advocates and privacy experts. The Electronic Frontier Foundation (EFF), a nonprofit organization focused on digital rights, has sued CMS over the AI prior authorization demonstration. The EFF argues that the model violates patients' rights to fair and transparent care processes.

Critics of the WISeR model argue that it could lead to increased denials of necessary medical services, particularly for vulnerable populations such as seniors and individuals with complex health conditions. They also point out that the AI algorithms used in the program may lack transparency and accountability, making it difficult for patients to understand why their requests for care are being denied.

What Comes Next

The introduction of these resolutions marks a critical step in the legislative process. If Congress passes the resolution of disapproval, it would nullify the WISeR model and prevent its implementation. However, the path forward is uncertain, as the resolution must overcome potential opposition from both CMS and the administration.

Healthcare providers and patient advocacy groups are closely watching these developments. They urge lawmakers to prioritize transparency and patient-centered care in any regulatory changes. As the debate continues, the focus remains on ensuring that Medicare beneficiaries have access to timely and appropriate medical services without unnecessary bureaucratic hurdles.

The outcome of this legislative effort will have significant implications for how AI is used in healthcare decision-making processes and the balance between innovation and patient protection.