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This series, a Pulitzer Prize finalist for investigative reporting, highlights the dangers of AI use in medicine

Casey Ross and Bob Herman’s reporting exposes how UnitedHealth Group used an unregulated algorithm to override clinicians’ judgment and deny care to seriously ill older and disabled patients.

Part 1: How Medicare Advantage plans use algorithms to cut off care for seniors in need

Breakthrough Device Tracker

Part 2: How UnitedHealth’s acquisition of a popular Medicare Advantage algorithm sparked internal dissent over denied care

Generative AI Tracker

Part 3: UnitedHealth pushed employees to follow an algorithm to cut off Medicare patients’ rehab care

Part 4: UnitedHealth used secret rules to restrict rehab care for seriously ill Medicare Advantage patients

Get real-time updates for Casey & Bob’s reporting with STAT+ Email Alerts

Related Coverage

The series had immediate and far-reaching impacts in Congress, federal agencies, courts, and even UnitedHealth. Read our follow-up stories.

Generative AI Tracker

UnitedHealth faces class action lawsuit over algorithmic care denials in Medicare Advantage plans

Humana used algorithm in ‘fraudulent scheme’ to deny care to Medicare Advantage patients, lawsuit alleges

Senate Democrats push for stronger rules around AI in Medicare Advantage

Government warns Medicare Advantage insurers not to deny care based on AI

UnitedHealth discontinues a controversial brand amid scrutiny of algorithmic care denials

Senators probing largest Medicare Advantage plans over how algorithms factor in care denials

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