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Person in blue medical scrubs and a stethoscope writes on paper at a desk near a laptop, consulting with a Silicon Valley FCA whistleblower lawyer.

A $541.5 Million Medicare Advantage Settlement Shows the Stakes of Unsupported Diagnosis Codes

08.31.2026

Last week, the Justice Department (DOJ) announced a $541.5 million False Claims Act settlement with The Villages Health System LLC, a Florida provider group, over allegations that it submitted invalid diagnosis codes that increased Medicare Advantage payments.

The size of the resolution is striking. So is the alleged path the false information took.

Medicare Advantage plans receive monthly payments from the Centers for Medicare & Medicaid Services. Those payments are adjusted to reflect each member’s expected health costs. Diagnoses associated with serious chronic conditions can therefore increase the amount the government pays.

According to DOJ, The Villages Health submitted diagnosis codes to Humana, UnitedHealthcare, and Florida Blue Medicare plans from 2020 through 2024. The codes allegedly lacked adequate support in the medical record or were based on record amendments that were not timely, were not initiated by the treating provider, or were not approved by that provider. The plans then submitted the codes to Medicare, increasing government payments and, in turn, payments to The Villages Health.

This is a familiar risk-adjustment problem with an important twist: the defendant was a provider group rather than a Medicare Advantage insurer. Provider groups may share financially in risk-adjusted payments, giving them a direct incentive to make patients appear sicker on paper. That makes employees who work in coding, chart review, compliance, and finance especially important to root out such misconduct. They may see whether diagnoses are supported, whether questionable codes are removed, and whether warnings are ignored.

What’s interesting in this case, though, is that the misconduct was not exposed by a whistleblower, nor was it independently sniffed out by the government. Instead, The Villages Health used the HHS Office of Inspector General’s Health Care Fraud Self-Disclosure Protocol. Of course, self-disclosure does not erase the alleged liability. But The Villages received credit for prompt remedial action and cooperation.

For potential Medicare Advantage risk-adjustment whistleblowers, the practical lesson is simple: unsupported codes can create enormous exposure, even when they move through several organizations before reaching CMS. Useful evidence may include coding directives, chart-review results, audit findings, and internal communications showing how disputed diagnoses were treated.

The settlement sends a powerful message that provider coding practices remain squarely within DOJ’s healthcare fraud enforcement focus.

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