MMA Joins Suit Against MultiPlan and Leading Insurance Providers Over Healthcare Price-Fixing
June 11, 2026
The MMA has joined a federal multidistrict litigation (MDL) against MultiPlan (recently rebranded to Claritev) and major insurers, including UnitedHealth, Elevance, Humana, Aetna, and Cigna, alleging that they conspired to systematically underpay healthcare practitioners for reimbursements for out-of-network services, which often fail to cover operating costs.
MultiPlan goes by many names, including Data iSight, Viant, NCN, ProPricer, and MARS. Plaintiffs allege that MultiPlan facilitated a price-fixing agreement among insurers that artificially suppressed out-of-network payment rates, and cost providers billions of dollars.
The MMA joins the AMA and hundreds of physician practices and facilities nationwide in this growing antitrust litigation.
This lawsuit, filed in the Northern District Court of Illinois in 2024, seeks to end MultiPlan’s alleged anticompetitive scheme, that it has operated since at least 2015, and recoup financial damages for practitioners and practices. As of 2024, MultiPlan processes more than 80% of all commercial out-of-network reimbursement claims in the United States. Providers may not always know whether MultiPlan, or one of its services like Data iSight, Viant, NCN, ProPricer, or MARS, re-priced their claims. Clues can often be found in Explanations of Benefits or remittance advice.
Physician practices and healthcare providers who have been out-of-network with major insurers may be entitled to financial damages for claims dating back 10 years. If interested in learning more, contact one of the lawyers appointed by the court to lead non-class claims or access resources, including a free case evaluation.
The court has also appointed attorneys to litigate a proposed antitrust class action on the same issues, but a ruling on any proposed class certification is not expected until 2027. Providers who believe they have been impacted by MultiPlan’s conduct can choose to pursue their claims individually on a non-class basis, and do not need to wait for any ruling on a proposed class.
