Kaiser Permanente’s DOJ Settlement: $556M Medicare Advantage Case

Five Kaiser Permanente affiliates agreed in January 2026 to pay $556 million to the U.S. Department of Justice to resolve False Claims Act allegations that they submitted hundreds of thousands of unsupported diagnosis codes to Medicare Advantage between 2009 and 2018, inflating federal payments by roughly $1 billion. The Kaiser Permanente DOJ settlement is the largest ever recorded against a Medicare Advantage insurer.¹ Kaiser did not admit wrongdoing and said it settled to avoid the cost and uncertainty of prolonged litigation.²

How the Alleged Scheme Worked

Medicare Advantage pays health plans a flat monthly amount for each enrollee, adjusted upward when the enrollee has serious diagnoses on file. Sicker patients on paper mean higher payments. That mechanism, called risk adjustment, gives insurers a financial reason to document as many qualifying conditions as possible.³

According to the DOJ, Kaiser mined patients’ past medical histories to find diagnoses that had never been reported to the Centers for Medicare and Medicaid Services, then sent queries to physicians urging them to add those diagnoses to charts through amendments called addenda. Many were created months, sometimes more than a year, after the underlying visit, and many concerned conditions that were not treated or evaluated during that visit.⁴ CMS rules require that a diagnosis code be supported by a face-to-face encounter and reflect a condition that affected care during that encounter.

The government estimated Kaiser added approximately 500,000 diagnoses through these practices, producing about $1 billion in improper payments over the nine-year period.⁵ Prosecutors alleged that Kaiser set facility-specific targets for added diagnoses, tied physician bonuses to hitting them, and singled out doctors whose numbers lagged.⁴

Warnings Kaiser Allegedly Ignored

The DOJ’s complaint alleged that Kaiser’s compliance office, internal audits, and physicians all raised the concern that retrospective coding was producing false claims, and that the company pressed on anyway.⁶

The government cited a 2011 report from Randi Osinek, a certified medical coder at a Kaiser facility in San Rafael, California, who told executives that “over 50% of the physicians tell me they feel that they are being ‘forced’ to add diagnoses that they did not consider, evaluate, and/or treat. Especially since they feel their bonuses are being impacted.”⁷ Internal communications, the complaint said, described end-of-year pushes to add diagnoses in terms it characterized as a “dash for cash.”

The Whistleblowers Who Brought the Case

The case reached the DOJ through the False Claims Act’s qui tam provisions, which let private citizens sue on behalf of the government and share in any recovery. Six qui tam suits filed by ten whistleblowers were consolidated in the U.S. District Court for the Northern District of California, and DOJ intervened in July 2021.⁸ Two relators, Ronda Osinek and Dr. James M. Taylor, are named in the settlement and together will receive $95 million.⁴

Osinek filed the earliest suit in August 2013. As a data quality trainer and audit manager at The Permanente Medical Group, she said Kaiser began what she called “diagnosis chasing” around 2007, reviewing patient data for conditions like kidney disease, diabetes, and depression that would trigger higher reimbursement, then requiring physicians to amend files to include them.⁹

Taylor, a family physician, rose to physician director of coding and medical director of revenue cycle at Colorado Permanente Medical Group, served four years on that group’s board, and was national co-chair of Kaiser’s ICD-10 Compliance Committee.¹⁰ He spent seven years trying to fix the coding problems internally, running audits, hiring a physician to review thousands of stroke codes, and building filters in Kaiser’s electronic records to block incorrect entries. According to Taylor, managers frequently canceled or defunded those measures. He resigned in 2015 and filed his own complaint.¹¹ “I stayed as long as I did because I believed the problems could be fixed internally,” Taylor later said. “There were moments of progress, but too often the solutions were undone.”¹²

Who Is Paying and What the Deal Covers

Five Kaiser affiliates are parties to the settlement:

Kaiser Foundation Health Plan Inc.
Kaiser Foundation Health Plan of Colorado
The Permanente Medical Group Inc.
Southern California Permanente Medical Group
Colorado Permanente Medical Group P.C.

The $556 million total resolves all of the consolidated False Claims Act allegations. DOJ has not published a breakdown of what each entity pays.⁴ No corporate integrity agreement with the HHS Office of Inspector General has been publicly announced; the OIG’s database of active and closed integrity agreements does not list Kaiser Permanente.¹³

Kaiser’s Response

Kaiser denied wrongdoing. In its public statement, the company characterized the dispute as being “about how to interpret the Medicare risk adjustment program’s documentation requirements” and said the case was unrelated to the quality of care its members received. Kaiser also noted that “multiple major health plans have faced similar government scrutiny” over risk adjustment standards.²

Where This Fits in the Wider Medicare Advantage Crackdown

Kaiser’s deal is the largest but not the only recent action. In March 2026, Aetna agreed to pay $117.7 million to resolve False Claims Act allegations that it used internal chart reviews to add diagnosis codes while failing to delete codes its own reviews could not substantiate, and that it submitted unsupported morbid obesity diagnoses between 2018 and 2023.¹⁴ Aetna declined a corporate integrity agreement, prompting the OIG to place it under “heightened scrutiny” for ten years and reserve the right to exclude it from federal health care programs.¹⁵

UnitedHealth Group, the largest Medicare Advantage insurer, disclosed in a July 2025 SEC filing that it was cooperating with both criminal and civil DOJ requests related to its Medicare program participation.¹⁶ The criminal probe, run by the DOJ’s healthcare-fraud unit, could be the first of its kind against a major Medicare Advantage insurer.¹⁷ In a separate civil case, a court-appointed Special Master recommended summary judgment for UnitedHealth in March 2025 in a whistleblower suit alleging $2.1 billion in overpayments; DOJ filed objections and a district court ruling remains pending.¹⁸

Congress has also moved. Senators Bill Cassidy and Jeff Merkley reintroduced the No UPCODE Act in March 2025, a bipartisan bill that would bar CMS from using diagnoses from chart reviews or health risk assessments when calculating risk adjustment payments, require two years of diagnostic data instead of one, and require public reporting of coding pattern differences between Medicare Advantage plans and traditional Medicare.¹⁹ As of mid-2026 the bill remains in the Senate Finance Committee; an essentially identical 2023 version did not advance.²⁰ Since 2017, the HHS OIG has conducted 44 managed care audits, 42 focused specifically on the accuracy of diagnosis coding.²¹

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