Medicare’s new pilot program using artificial intelligence for prior authorization has caused significant confusion, treatment delays, and billing complications for patients and healthcare providers, according to recent reports from affected states. Though designed to reduce fraud and inappropriate care, the Wasteful and Inappropriate Service Reduction Model (WISeR) has sparked frustration due to operational issues during its rapid rollout.
What Happened
In January 2026, Medicare launched WISeR, an AI-powered prior authorization initiative in six states: Oklahoma, Arizona, New Jersey, Ohio, Texas, and Washington. This new program requires prior written approval before patients can proceed with certain medical services, including epidural injections, kyphoplasty for spinal fractures, and the use of skin substitutes—chosen due to their high susceptibility to fraud or overuse.
The pilot program mandates that healthcare providers submit medical documentation through online portals for prior approval, with the AI system aiming to approve valid requests within 72 hours. However, patients like Bill Curry, a rural Oklahoma cattle farmer, have faced multiple additional trips and lengthy delays to obtain routine procedures. Providers and patients have reported wait times extending to six or eight weeks and substantial backlogs in both authorizations and reimbursement payments.
Key Facts
- WISeR affects 13 medical services identified for potential misuse or fraud, including epidurals, kyphoplasty, and skin substitutes.
- The program was announced in June 2025 and launched in mid-January 2026—significantly faster than typical federal government rollouts.
- AI systems reportedly provide “immediate yes” approval in approximately 88% of cases with sufficient clinical data per Humata Health, the Oklahoma vendor.
- Delays and errors have caused appointment backlogs, with the University of Washington alone seeing nearly 100 patients awaiting epidurals due to WISeR-related authorization issues.
- Providers report frequent “nitpicking” during reviews and instances where submitted documentation was overlooked, prompting redundant requests.
- Claims should be reimbursed within 15 days if without problems, but radiologists in Oklahoma cite delays of six to eight weeks in payments.
- The program has produced increased administrative burdens and appeals, raising government operational costs.
What This Means
While Medicare’s goal with WISeR is to curb fraud and reduce waste, real-world implementation has introduced complex barriers for timely patient care. The delays and administrative hurdles not only frustrate healthcare providers but also risk forcing patients to seek treatment outside their Medicare coverage area, potentially incurring higher costs or receiving suboptimal care. This pilot reflects the challenges of integrating AI automation in critical healthcare decisions and underscores the human costs of tech-driven oversight when systems are rushed.
Moreover, the additional paperwork and repeated appointments burden vulnerable patients, particularly those in rural or underserved areas. The frustration voiced by clinicians highlights how AI, often touted for efficiency, may exacerbate existing systemic problems when not accompanied by adequate training, clear protocols, and staffing. This underlines that AI solutions require cautious, measured integration to avoid unintended patient harm and operational chaos.
Medicare beneficiaries and providers should closely monitor ongoing developments in the WISeR program, preparing for potential expanded use that could broaden prior authorization requirements. The experience may inform broader debates about the balance between fraud prevention and patient access within public healthcare systems using AI and automation.
Background
Prior authorization has historically been avoided by traditional Medicare but has long been a standard practice for private insurance due to concerns about fraud and misuse of certain costly procedures. The Trump administration reintroduced prior authorization through WISeR to address identified surges in Medicare spending, such as a nearly 700% increase in skin substitute claims over two years, flagged by the Department of Health and Human Services inspector general.
Analysis
Todd Baker, former CEO of the Ohio State Medical Association, and other medical leaders have criticized the rapid launch timeline, calling it “quicker than normal” and noting providers were “left to figure it out” after limited preparation. Jeremy Friese, CEO of Humata Health, which provides the AI system for Oklahoma, said the rollout had been aggressive but reported no known cases of AI-generated inaccurate decisions, contrary to some clinician suspicions about “hallucinations” in AI denial processes.
What Remains Unclear
It is currently unknown whether all affected Medicare beneficiaries in the pilot states have been fully notified of the new requirements or how many have experienced delays or denials not resolved by appeals. Medicare officials have not provided details on how many cases of erroneous AI-assisted denials exist or the adoption rate of the most efficient AI decision pathways.
What Comes Next
Medicare has stated there are no immediate plans to expand WISeR’s list of reviewed services but continues to assess potential modifications. The agency is working with its vendors to clear backlogs and improve provider experience based on stakeholder feedback. Providers are closely watching for adjustments that can reduce wait times and administrative burdens moving forward.
Sources
This article is based on reporting and publicly available information from the following sources:
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