Medicare Pilots AI Prior Authorization, Causes Delays

The Centers for Medicare & Medicaid Services (CMS) launched the Wasteful and Inappropriate Service Reduction Model, or WISeR, a prior-authorization pilot that began in mid-January, according to reporting by KFF Health News. The pilot applies AI-assisted prior authorization reviews to a list of procedures that KFF describes as 13 services, including epidural steroid injections, treatments for spinal stenosis and knee osteoarthritis, and certain nerve-stimulator implants. KFF lists the six pilot states as Arizona, New Jersey, Ohio, Oklahoma, Texas, and Washington. Yahoo Finance reports the pilot affects roughly 6.4 million traditional Medicare beneficiaries. CMS has contracted private companies to deploy "enhanced technologies, including artificial intelligence," in the authorization workflow, Yahoo reports.

Public reporting describes WISeR as combining standard prior-authorization processes with AI-supported review tools. KFF Health News and Yahoo Finance report CMS engages private contractors to run automated or AI-assisted decision support that screens requests for the selected services. The pilot's public materials and reporting emphasize targeting procedures the administration flagged as vulnerable to misuse; KFF notes the Trump administration described the services as prone to fraud or misuse.

Editorial analysis: Early data and hospital reports cited by Senator Maria Cantwell and covered in Healthcare Dive and FierceHealthcare show substantial increases in authorization turnaround. Those sources report procedures that historically cleared in about two weeks are now taking four to eight weeks in some Washington hospitals, with University of Washington system data showing urgent authorizations stretching to 15-20 days for categories that were previously single-day or three-day turnarounds. KFF and advocacy groups quoted in news coverage document widespread confusion among providers and patients, plus added travel and repeated appointments for some Medicare beneficiaries.

Editorial analysis: These operational impacts are the clearest immediate consequence for practitioners. Provider groups and state hospital associations cited in the reporting describe rescheduling, longer wait times, and administrative burden as hospitals and clinics adapt to new documentation and submission workflows. KFF quotes state-level physicians and association leaders saying the rollout timeframe-described by one source as "quicker than normal" in KFF reporting-contributed to the implementation challenges. CBS News independently reports technical glitches and communication breakdowns compounding delays for patients and physicians (CBS News).

If your organization interacts with traditional Medicare in the six pilot states, expect increased administrative friction on the affected service codes while WISeR is active. Public reporting indicates approvals are taking longer and that hospitals have needed to track backlogged urgent authorizations. Providers should monitor official CMS guidance and contract notices from the selected contractors, since reporting attributes the AI-assisted review tools and the private contractors as the operational agents handling requests (Yahoo Finance).

Watch three indicators that reporters and lawmakers have highlighted:

• •CMS or contractor performance metrics on authorization turnaround times and denial rates
• •formal complaints or corrective findings from state hospital associations or congressional oversight (Sen. Maria Cantwell's report is already cited in coverage)
• •any adjustments to the scope of services covered-KFF and AARP reporting note discrepancies in counts (KFF cites 13 services; AARP has referenced 15), so the exact list remains material for clinical workflows

Editorial analysis: Longer term, observers will likely monitor whether AI-assisted prior authorization reduces fraud or lowers utilization enough to justify the administrative costs. Industry patterns from prior-authorization expansions in other payer contexts show that initial rollouts often produce confusion, data-integration issues, and delayed care before workflows stabilize. Those patterns suggest metrics and provider feedback will be the primary signals regulators use to evaluate WISeR's operational viability.