MedCity News September 8, 2025
Katie Adams

A federal judge has allowed key claims in Particle Health’s antitrust lawsuit against Epic to move forward, marking the first time such allegations against the EHR giant have gotten this far. The case centers on Epic’s alleged use of its influence over the Carequality data exchange to block Particle’s access to patient records and stifle competition in the emerging payer platform market.

Over the weekend, a federal judge issued a significant ruling in Particle Health’s antitrust lawsuit against Epic, allowing key claims to proceed while dismissing others.

Judge Naomi Buchwald of the Southern District of New York permitted three of Particle’s federal antitrust claims to move forward, as well as a claim of tortious interference with business contracts.

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