WISeR Model Introduces AI-driven Claims Review Program in Arizona
New Federal Pilot Program Targets Traditional Medicare in Arizona; Physicians Voice Concerns
A controversial federal pilot program launching January 1 will use artificial intelligence and other processes to review and potentially deny certain Medicare claims in Arizona and five other states, raising concerns among physicians about inappropriate denials of necessary care.
WISeR Program Overview
The Wasteful and Inappropriate Service Reduction program, known as WISeR, represents a significant departure from traditional Medicare's typical operations. The six-year pilot will require prior authorization for specific medical services through private companies using enhanced technologies, including AI algorithms.
Arizona joins New Jersey, Ohio, Oklahoma, Texas, and Washington in the program, which collectively covers one in five traditional Medicare beneficiaries nationwide. Approximately 744,000 Arizonans enrolled in traditional Medicare could be affected—roughly half of the state's 1.5 million Medicare enrollees.
According to federal officials, the goal of the pilot program is to cut back on fraud and abuse in Medicare. However, healthcare experts are concerned about unintended consequences.
Medical Organizations in Arizona, Other Pilot States Oppose the Program's Implementation
The Arizona Medical Association and other medical organizations nationwide have taken a prominent role in opposing the program's implementation.
In a letter to CMS Administrator Dr. Mehmet Oz, ArMA President Dr. Jason Jameson, along with medical association leaders from the other five affected states, requested a halt to the program and asked that the agency "work collaboratively with stakeholders to design payment processes that protect the Medicare Trust Fund while achieving value, without jeopardizing patient access."
The associations argued the initiative shifts critical clinical decisions away from physicians and patients without adequate transparency, stakeholder input, or evidence demonstrating improved patient outcomes:
"While our organizations appreciate the aim of [CMS] to increase accountability, value in healthcare delivery for Medicare beneficiaries, and reduce spending on services deemed low-value or wasteful, we believe the current design of this pilot risks unintended consequences, including delayed care, reduced access, and increased burdens on both patients and physicians."
Targeted Medical Services
The program focuses on treatments federal officials identified as vulnerable to fraud and abuse, including:
- Impotence diagnosis and treatment
- Incontinence control devices
- Deep brain stimulation for essential tremor and Parkinson's disease
- Image-guided lumbar decompression for spinal stenosis
- Skin and tissue substitutes
Federal officials characterize these services as having limited clinical value, though healthcare experts note some represent critical, time-sensitive care.
Prior Authorization Shift for Traditional Medicare
Prior authorization remains uncommon in traditional Medicare, unlike Medicare Advantage plans where the practice is standard. Arizona State University College of Health Solutions Professor Swapna Reddy emphasized this distinction, noting prior authorization creates significant administrative challenges for healthcare systems and can become adversarial.
In a 2024 American Medical Association survey, 93 percent of physicians reported that prior authorization causes care delays, 82 percent indicated that the process can lead to treatment abandonment, and an alarming 29 percent said that prior authorization had led to a serious adverse event (hospitalization, disability, or even death) for a patient in their care.
Arizona's Prohibition of AI-driven Medical Claims
Earlier this year, ArMA successfully advocated for state legislation to prohibit AI-driven medical claim denials. The legislation prohibits health insurance companies from relying solely on AI to deny medical claims, requiring medical directors to individually review denials and exercise independent medical judgment. The law was signed on May 12, and takes effect June 30, 2026.
The law sets a national precedent for regulating AI's use in commercial medical insurance, putting Arizona ahead in the race to ensure regulation keeps up with development and implementation. While the new legislation will significantly stopper an issue physicians have identified as pervasive among private payers, it does not apply to Medicare or Medicaid coverage.
Arizona Physicians Say the Program is Coming Too Fast, With Too Few Details
Despite the program being scheduled to begin on January 1, the physician community is voicing confusion amid a lack of operational details released to date. For a program of its magnitude, the WISeR Model is advancing at a notably quick pace, especially considering its implementation lacks sufficient transparency, stakeholder input, or evidence it will improve patient care.
Read more about the WISeR Model.
Information in this article was sourced from Arizona Central (article accessible to subscribers only). (article accessible to subscribers only).






