She was asleep on the table. Breast cancer. Her surgeon had already spent hours rebuilding what the disease had taken. Then a note came into the operating room.
UnitedHealthcare was on the phone. They needed to speak with the surgeon. It was urgent. The patient, the one currently under anesthesia with her chest open, was the subject of the call. The insurance company wanted to know if the overnight stay was really justified.
Dr. Elisabeth Potter, a board-certified plastic surgeon in Austin, Texas, who performs roughly 520 cancer reconstruction surgeries a year, scrubbed out mid-procedure to take the call. The UnitedHealthcare representative, she later recounted, did not know the patient had breast cancer. “That’s a different department,” the rep told her.
What Happened After She Spoke Out
Potter posted a video. It went viral. 5.5 million views on TikTok and Instagram. Doctors, nurses, and patients who had spent years living inside this system finally had someone naming it out loud, in scrubs, with the exhaustion of someone who had just finished four surgeries and could not stay quiet about what had happened.
UnitedHealthcare’s response was to send her a legal letter. Accused of libel. Told to delete the video. Warned, in the language that large corporations use when they want someone to disappear, that continuing would have consequences.
She did not delete it. She spent the next two years fighting hiring lawyers, speaking publicly, building a case that eventually reached the halls of Congress and the desk of HHS Secretary Robert F. Kennedy Jr. A press conference followed. Insurance companies, under pressure they could no longer absorb quietly, voluntarily agreed to reform the prior authorization process. Potter’s case became the proof of concept that the system needed publicly documented human casualties before it would move at all.
By late 2025, the dispute had cost her so much financially, professionally, and emotionally that she told NBC News it may force her into bankruptcy. The surgeon who fought the insurance company is facing financial ruin. The insurance company posted record profits.
The Number That Explains Everything
UnitedHealthcare denied one in every three claims in 2023. Thirty-three percent. That was the highest denial rate of any major insurer in the United States, and it was twice the industry average of 16 percent, according to data cited by the Boston Globe and KFF health policy research. The company covered more than 70 million members. The math is not abstract tens of millions of denied claims, each one a person who needed something and was told no.
The denial rate fell to 20 percent in 2024, the largest year-over-year improvement among major national insurers, according to analysis of CMS Transparency in Coverage data. That drop was not an act of conscience. It followed the assassination of CEO Brian Thompson in December 2024, an event that turned prior authorization from an industry term into a national conversation and the regulatory pressure that came with it.
KFF’s analysis of HealthCare.gov insurer data found that UnitedHealth Group denied 33 percent of in-network ACA marketplace claims in 2023, across 274 plans in 20 states. The national average that year was 19 percent. The gap between what UnitedHealthcare was doing and what every other insurer was doing is not a rounding error. It is a business strategy.
The Algorithm Nobody Voted For
The denials did not happen because a doctor at UnitedHealthcare reviewed each case and made a judgment. Many of them happened because a piece of software called NH Predict said no.
A US Senate Permanent Subcommittee on Investigations report found that UnitedHealthcare’s post-acute care denial rate rose from 8.7 percent to 22.7 percent between 2019 and 2022, a period that coincides precisely with the deployment of the NaviHealth-backed nH Predict algorithm. The tool was built to manage claims. What it actually managed was the distance between what patients needed and what the company paid for.
A separate lawsuit, still working through federal courts, alleges that UnitedHealthcare’s AI model had a known 90 percent error rate and was used anyway to deny patients necessary care they were entitled to under Medicare Advantage plans. Ninety percent. If that figure survives legal scrutiny, it means the algorithm was wrong nine times out of ten, and the company deployed it at scale regardless.
The people on the receiving end of those decisions were not abstractions. They were patients in post-acute care facilities, trying to recover from surgeries, strokes, and cancer treatments, and being told their coverage was ending because software said so. And when they appealed, CMS data shows that approximately 80 percent of appealed UnitedHealthcare Medicare Advantage prior authorization denials were partially or fully overturned. Eight in ten appeals succeeded. Which means eight in ten original denials were wrong. And most people never appealed at all.
The Business Model Behind the Denial
Here is what prior authorization actually is, stripped of the industry language. Before a doctor can perform certain procedures, prescribe certain medications, or admit a patient to a certain level of care, they must first ask the insurance company’s permission. The company can say yes, say no, or say nothing for weeks while the patient waits.
Insurers argue this process exists to prevent unnecessary medical spending. There is some truth in that. Some doctors overprescribe, facilities that over-admit, procedures that get performed because the billing code exists rather than because the patient needs it. Prior authorization, in theory, is a check on waste.
In practice, it has become something else. The American Medical Association’s 2024 Prior Authorization Survey found that 93 percent of physicians reported care delays caused by prior authorization requirements, and 24 percent reported that the delays had led to serious adverse events for patients. Doctors spent an average of 14 hours per week, nearly two full working days, on prior authorization paperwork. That time is not spent treating patients. It is spent navigating a system designed, however intentionally, to make approval difficult enough that some percentage of requests are abandoned before they succeed.
The business logic is straightforward. Every denied claim that goes unappealed is money the company keeps. Every delayed authorization that causes a patient to seek less expensive care is a cost avoided. Every physician whose practice cannot absorb the administrative burden of fighting denials simply stops ordering the procedure. The savings are not hypothetical. They are built into the earnings model.
The Steelman: What the Industry Gets Right
The insurance industry’s defense of prior authorization deserves honest engagement, because dismissing it entirely would be intellectually convenient rather than accurate.
American healthcare spending is genuinely out of control. The United States spends more per capita on healthcare than any other developed nation and achieves worse outcomes on most population health measures. Some of that spending is driven by unnecessary procedures, imaging ordered because the technology exists, surgeries performed because the surgeon is available, and medications prescribed because the pharmaceutical rep was persuasive. Prior authorization, at its best, is supposed to be the friction that catches those decisions before they become costs.
UnitedHealthcare covers 70 million people. Managing that population without some system of utilization review would, the company argues, result in premiums that price even more Americans out of coverage entirely. The prior authorization process, in this framing, is not cruel. It is an actuarial necessity.
The problem is that the data does not support the execution. When 80 percent of appeals succeed, the original denials were not catching waste. They were generating it in the form of delayed care, additional administrative costs, worsened patient outcomes, and the kind of story that ends with a surgeon facing bankruptcy for posting a video about a phone call she received while a cancer patient was on her table.
The Silence Around 100 Million People
One hundred million Americans carry medical debt. That figure, from a 2022 KFF Health System Tracker analysis, represents more people than live in Germany. It is the largest documented pool of medically induced financial distress in the developed world, and it exists alongside a health insurance industry that posted tens of billions in profit in the same years those debts accumulated.
The connection is not incidental. Denied claims become bills. Bills become debt. Debt becomes the background noise of financial life for people who did everything right, paid their premiums, saw their in-network doctors, followed the referral process, and still ended up owing money they do not have for care they already received.
The pattern of institutional actors reshaping essential services to maximize extraction from people who have no alternative is not unique to health insurance. As explored in coverage of how private equity transformed the economics of medical care, the underlying logic is consistent: find the market where demand is inelastic, control access to the service, and charge what the captive customer base cannot refuse. Health insurance is the most inelastic market in existence. You cannot opt out of needing medical care.
What Changed and What Did Not
The assassination of Brian Thompson in December 2024 produced something rare in American healthcare policy: a sustained public conversation about prior authorization that did not dissipate after a news cycle. The messages found on the shooter’s ammunition, “deny,” “defend,” “depose,” became shorthand for what millions of people had experienced in silence. Social media is filled with stories. Congress held hearings. Secretary Kennedy held a press conference.
UnitedHealthcare’s denial rate fell 13 percentage points in one year. That is a significant change, driven by a combination of regulatory pressure, reputational crisis, and the specific heat generated by Dr. Potter’s video and the legal battle that followed.
What did not change is the structural architecture that makes denial profitable. Prior authorization still exists. The algorithm still runs. The appeals process still requires persistence that most sick people cannot sustain. The administrative burden on physicians still consumes hours that should be spent on patients. And the financial incentives that reward denial over approval are still embedded in how insurance companies are compensated and how their performance is evaluated by shareholders.
The broader economic instability that medical debt contributes to the same household balance sheet pressure examined in the analysis of the recession risk building through 2027 does not disappear because one company improved its denial rate by 13 points under public pressure. One hundred million people still carry the debt. The system that generated it is still operating.
The Call That Should Not Have Happened
Dr. Potter is still practicing. Still rebuilding breasts for women who had cancer. Still doing 520 surgeries a year. Still, according to her own account, dealing with the financial fallout of choosing to speak.
The patient who was on the table that day recovered. We do not know her name. We know she had breast cancer and was asleep while a representative from her insurance company called the operating room to ask about her overnight stay. We know the representative did not know she had cancer. We know the surgeon had to scrub out of her surgery to answer the call.
That call should not have happened. The system that produced it, the one where prior authorization algorithms run on data sets that consumers never see and cannot challenge, is still running. In operating rooms across the country, right now, notes are being brought in. Surgeons are being interrupted. Patients are asleep on tables while someone at an insurance company asks whether what is being done to them is really necessary.
UnitedHealthcare called mid-surgery. The rep did not know the patient had cancer. That sentence is not a headline. It is a description of how the system works on an ordinary Tuesday afternoon.
