Is Your 2026 Medicare Now Using AI to Delay Your Care?

For sixty years, traditional Medicare made a simple promise that set it apart from private insurance: if your doctor said you needed a covered service, you got it, without asking an insurance company for permission first. In 2026, that promise changed for millions of seniors. A new federal pilot program is now requiring prior authorization — pre-approval — for certain procedures in traditional Medicare, using artificial intelligence to help screen the requests. Seniors in the affected states are already reporting delays of weeks for treatments that used to be approved in days. A U.S. senator has called for the program to be scrapped. If you live in one of the six pilot states, this directly affects how you'll get care this year.

What WISeR Is — and Why It's a Historic Change

The program is called WISeR, which stands for Wasteful and Inappropriate Service Reduction. It launched on January 1, 2026, as a six-year pilot run through the Center for Medicare and Medicaid Innovation, and it represents one of the most significant structural changes to traditional Medicare in years.

To understand why it matters, you have to understand what made traditional Medicare different from Medicare Advantage in the first place. Medicare Advantage plans have always used prior authorization heavily — requiring enrollees to get insurer approval before many procedures, a practice that has generated years of complaints about delays and denials. Traditional Medicare, by contrast, required prior authorization for only a small handful of services. That difference was one of the main reasons many seniors chose traditional Medicare: fewer hurdles, more direct access to care, less second-guessing of their doctors. Our overview of how traditional Medicare and Medicare Advantage compare on prior authorization walks through that historical difference.

WISeR begins to erode that distinction. Under the program, 17 outpatient procedures now require pre-approval before they'll be covered in the pilot states. The services targeted are ones CMS describes as vulnerable to fraud, waste, and abuse, or as offering low clinical value — including epidural steroid injections for pain management, percutaneous vertebral augmentation for spinal fractures, electrical nerve stimulator implants, and the application of skin and tissue substitutes for chronic wounds. Notably, the list skews heavily toward pain management and orthopedic care, which means the seniors most affected are often those living with chronic pain or recovering from injury.

The program also introduced something new and controversial to traditional Medicare: artificial intelligence in the review process. AI systems screen the initial prior authorization requests. CMS has emphasized that a licensed human clinician — not a machine — must review and make any final decision to deny a service. But critics point out that AI screening still shapes which requests get flagged, slowed, or sent down a more burdensome review path, and that the structure of the program creates troubling incentives.

The Delays Seniors Are Already Experiencing

The concerns about WISeR are no longer hypothetical. Less than four months after launch, the program is generating documented delays and a political backlash that reaches the U.S. Senate.

In April 2026, Washington Senator Maria Cantwell released findings based on hospital surveys in her state and formally asked the Department of Health and Human Services to scrap the program. Her central finding was stark: procedures that previously cleared in roughly two weeks were now taking four to eight weeks under WISeR. The University of Washington Medical System reported an average prior authorization response time of 15 to 20 days for services that, last year, required no pre-approval at all.

At a Senate Finance Committee hearing, Cantwell pressed HHS Secretary Robert F. Kennedy Jr. directly, arguing that AI was being used as what she called a "denial device" rather than a tool to reduce fraud. Kennedy publicly called the multi-week waits "unacceptable" and committed to working on a fix — a notable acknowledgment from the administration that the program, as implemented, was causing real harm.

The Center for Medicare Advocacy, a nonpartisan beneficiary advocacy organization, has documented similar problems. Drawing on reporting from the Washington Post, the organization noted that physicians in pilot states have struggled with online portals, faced communication breakdowns with the technology vendors processing requests, and in some cases were unable to get timely authorizations — while patients waited in pain. The organization has formally come out in opposition to maintaining or expanding the program. Our reporting on how AI is reshaping Medicare coverage decisions covers the broader pattern.

What makes the delays particularly difficult is the nature of the affected care. Many of the 17 procedures are pain management treatments. A senior waiting four to eight weeks for an approved epidural steroid injection is, in practical terms, a senior living in pain for an additional month or more — for a treatment their doctor already determined they need. The delay isn't an abstraction. It's measured in weeks of suffering.

How to Protect Yourself If You're in a Pilot State

If you live in Arizona, New Jersey, Ohio, Oklahoma, Texas, or Washington and you're on traditional Medicare, there are concrete steps that can reduce your risk of a harmful delay.

The first is to know whether your care is affected. The 17 WISeR procedures are specific, and most routine care — primary care visits, standard diagnostic tests, most surgeries — is not on the list. The procedures most likely to affect seniors are pain management injections, spinal treatments for compression fractures, implanted nerve stimulators, and wound care using skin or tissue substitutes. If your doctor recommends one of these, that's your signal to start the prior authorization conversation immediately.

The second is to start early. Because approval can take several weeks, the worst position to be in is needing a procedure quickly and discovering the authorization hasn't been submitted. When your doctor recommends an affected procedure, ask that day whether the WISeR request has been initiated. A request approved under WISeR is valid for 120 days, so getting it submitted and approved well ahead of when you need the procedure gives you a buffer.

The third is to understand the resubmission and review options. If a request is denied, your provider can resubmit it with additional supporting documentation — and there's no limit on the number of resubmissions. Your provider can also request a peer-to-peer clinical review, where your doctor speaks directly with the reviewing clinician to make the case for medical necessity. These options exist specifically to correct wrongful denials, and they're underused because patients don't know to ask their doctors to pursue them.

The fourth is to document and escalate. If you experience a harmful delay, that experience matters beyond your own case. Filing a complaint with 1-800-MEDICARE, contacting your congressional representatives, and reporting to advocacy organizations like the Center for Medicare Advocacy all contribute to the political pressure that is already reshaping the program. Senator Cantwell's intervention came directly from constituent and hospital reports. Your experience, documented and reported, is part of how this gets fixed. Our Medicare resources directory lists state SHIP counselors who can help you navigate appeals and complaints for free.

Sources: Moss Adams WISeR Model details; Kiplinger — Prior authorization comes to traditional Medicare; Newsweek — Full list of WISeR services; CMS WISeR Model overview; STAT News; Center for Medicare Advocacy.

Where This Is Headed — and Why It Matters Beyond Six States

WISeR is described as a pilot, but pilots have a way of becoming permanent. CMS has stated explicitly that if the program is deemed successful, it could be expanded — to more states, more procedures, or both. That possibility is precisely what worries patient advocates and a growing number of lawmakers across the political spectrum.

The deepest concern centers on how the program's vendors are paid. The technology companies running the WISeR reviews are compensated, in part, based on the savings they generate for Medicare — and those savings come from requests that get reviewed but don't result in a paid claim. In plain terms, the companies doing the reviewing have a financial incentive tied to care not being delivered. CMS has built in safeguards, including the requirement that licensed clinicians make final denial decisions and performance metrics tied to accuracy and timeliness. But the underlying incentive structure is what advocates point to when they argue the program is designed in a way that rewards denial.

For now, if you're among the roughly 70 million Americans on Medicare but live outside the six pilot states, WISeR doesn't affect your care directly. But the outcome of this pilot — whether it's reformed, paused, narrowed, or expanded — will shape what prior authorization looks like in traditional Medicare for years to come. It's worth watching even if you're not currently affected, because the version of Medicare that emerges from this experiment may eventually be the one you're enrolled in. Our 2026 Medicare roadmap tracks the policy changes most likely to expand nationally.

The promise that traditional Medicare wouldn't make you ask permission for care your doctor ordered is being tested right now, in six states, with real patients. How it resolves matters to everyone.