The AI arms race between insurers, providers has begun

UnitedHealth Group, Cigna, and Humana all have something in common—besides being major health plans, that is.

They’re all currently facing lawsuits from patients alleging AI programs led to denied care. These suits claim (pun not intended) the insurance companies used AI-based algorithms to deny care without human oversight.

So far, AI has been touted as the future of healthcare by leaders across the industry. AI scribes have been promised to give clinicians more face time with patients and better work-life balance, while also saving hospitals money. AI agents, able to carry out complex tasks autonomously, have turbocharged the tech’s potential.

Reports have already shown these tools are being adopted faster than safeguards, despite concerns about cybersecurity or clinical deskilling. Now, with all the emerging lawsuits, the outlook of AI in healthcare is looking even more complicated.

Fawad Butt, former chief data officer of Kaiser Permanente, UnitedHealthcare, and Optum, told Healthcare Brew there’s been a lack of oversight regarding “whether algorithms are behaving as good actors or bad actors.”

Denying the denials

UnitedHealth spokesperson Eric Hausman told us it isn’t used for “adverse coverage decisions,” Cigna spokesperson Justine Sessions told Healthcare Brew AI isn’t being used to deny claims, and Humana didn’t respond to a request for comment.

But providers say the opposite—that plans are using AI for denials. While bigger health systems have more resources to appeal denials, some experts say independent rural hospitals could be hit harder. A 2023 Stat investigation found UnitedHealth was using predictive algorithms to decide when some patients should be cut off from care.

Alexa McKinley Abel, director of government affairs and policy at the National Rural Health Association, said the research and advocacy organization is hearing rural hospitals are increasingly burdened by responding to prior authorization and claims denials because they have less staff and fewer resources.

“If plans’ use of AI means even more prior authorization denials, then we would have concerns about the increasing paperwork and time associated with rectifying the denials for hospital staff as well as delays for rural patients that need to receive care,” she said.

Health A-Insurers

The Centers for Medicare and Medicaid Services doesn’t require insurance companies to share how prior authorization decisions are made or how predictive technology is used in the process, so most of the evidence comes from providers, patients, or insurers that choose to self-report.

A May survey from the National Association of Insurance Commissioners found 84% of 93 insurers used AI, with 50% saying they use it or are exploring its use to detect fraudulent claims, 68% for prior authorization approvals, 61% for disease management programs, and 45% for sales and marketing.

Only 9 of the 93 (12%) said they used or were considering using it to deny prior authorization requests.

Infinitus is an agentic communication platform that currently works with providers such as Medicare Advantage company Zing Health and Gramercy Surgery Center. The voice agent software can do things like conduct health risk assessments and handle specialty pharmacy prior authorization approvals for plans.

“The direction of travel for the industry is to introduce things that we fundamentally couldn’t do today because of a lack of human capital,” Infinitus CEO and founder Ankit Jain said.

The flip side

On the other hand, healthcare providers and patients are using AI, too, for tasks like appealing denials. Startups like Claimable are an example of this, creating tools that collect patient and coverage information, then format and send a letter to the plan.

But insurers say some providers are taking AI too far.

Elevance CEO Gail Boudreaux alleged in a July earnings call “isolated pockets” of hospitals are using AI to “increase documented acuity,” driving up unit costs for the insurer. And Centene CEO Sarah London said in her company’s July earnings call that the insurer uses AI in response to that trend.

“As [hospitals] integrate AI into the revenue cycle, we’re integrating AI into payment integrity to make sure that we are sort of keeping pace with all of that,” London said.

Marc Douek, managing partner and co-owner at physiotherapy chain Renew Wellness, told us the chain cuts hours of work down to minutes by using a tool called Spry to automate prior authorization requests and appeals.

A 2024 American Medical Association survey found physicians and their staff spend an average of 13 hours a week completing prior authorization requests. It’s also an expensive process, as the healthcare industry spent nearly $13 billion on prior authorization in 2023, according to the 2024 CAQH Index Report.

“Without using Spry in the automation…we wouldn’t be able to expand. We wouldn’t be able to treat our patients. We’d have to just turn people away,” Douek said.

Battle of the bots

Based on his conversations with insurers, Butt said providers have adopted AI faster—and insurers, which “haven’t adopted agentic [AI] as quickly,” now feel the tech has them “under the gun.”

“They’re left with old technology and humans responding to this deluge of appeals that are coming in from providers who just bought a software or an agent that essentially keeps appealing everything,” he said.

Butt is also co-founder of startup Penguin Ai, a platform intended to be a one-stop shop where both payers and providers can create AI agents. He believes both will need them in the future.

“What I predict is that it’s going to be agent wars galore,” he said.