Kaiser Sues Liability Insurers Over $556M Medicare Advantage Settlement

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Oakland-based Kaiser Permanente is suing nine liability insurers for breach of contract, claiming they have refused to cover any part of its $556 million settlement with the federal government over False Claims Act allegations tied to Medicare Advantage billing practices. The dispute stems from a consolidated whistleblower case alleging Kaiser submitted improper risk-adjusting diagnosis codes to inflate Medicare Advantage payments.

Why it matters

This case highlights the ongoing scrutiny and legal challenges facing healthcare providers over Medicare Advantage risk adjustment practices, which have been an industrywide issue. The outcome could set precedents around insurance coverage for large settlements involving government healthcare program overpayments.

The details

According to the complaint, Kaiser's primary D&O insurer AIG has only paid $1 million toward legal defense, citing a policy provision limiting coverage for claims involving the return of government funds. The eight excess insurers have also denied coverage for the settlement. Kaiser argues a large portion of the settlement represents multiplied damages under the False Claims Act that should be covered.

• In January 2026, Kaiser settled a consolidated whistleblower case for $556 million.
• On February 20, 2026, Kaiser filed a lawsuit against nine liability insurers in the U.S. District Court for the Northern District of California.

What’s next

The judge in the case will decide whether Kaiser's $556 million settlement with the federal government is covered under the liability insurance policies.