The Justice Department's Antitrust Division and the U.S. Attorney's Office for the Southern District of New York filed a civil antitrust lawsuit on March 26, 2026, against NewYork-Presbyterian Hospital, alleging the health system used its market position to impose anticompetitive contracting terms on health insurers across New York City [1]. The complaint charges that NewYork-Presbyterian deployed "all-or-nothing" contract provisions requiring insurers to include its facilities in their networks, or exclude them entirely, effectively foreclosing budget-conscious health plan options for consumers and suppressing competition among hospital providers [1][2]. The suit was filed in federal court under Section 1 of the Sherman Antitrust Act [1].
The Sherman Act prohibits contracts, combinations, or conspiracies in restraint of trade. The government's theory here focuses on how a dominant hospital system can weaponize network inclusion as leverage, forcing insurers to accept terms that crowd out lower-cost or narrower-network plan designs. NewYork-Presbyterian operates one of the largest hospital systems in the United States, with facilities spanning Manhattan, Brooklyn, Queens, and the surrounding region [2]. The DOJ alleged that the hospital's contracting practices raised healthcare costs for New Yorkers and limited the range of insurance products available in the market [1]. NewYork-Presbyterian has publicly disputed the characterization of its contracts as anticompetitive [2].
The action marks the second civil antitrust lawsuit the DOJ has filed against a major hospital system in 2026, signaling a sustained enforcement posture by the Antitrust Division toward payor contracting practices in the hospital sector [1]. Acting Assistant Attorney General Omeed A. Assefi and U.S. Attorney Jay Clayton for the Southern District of New York are among the key officials associated with the filing [1]. The government seeks injunctive relief to bar NewYork-Presbyterian from continuing the challenged contracting practices; no monetary damages are sought in a Sherman Act Section 1 civil government action of this type.
The case will proceed in the Southern District of New York. NewYork-Presbyterian will have the opportunity to answer the complaint and contest the government's market definition and competitive effects analysis, both of which are expected to be heavily litigated. Given the hospital's size and the complexity of managed-care contracting economics, the case is likely to involve extensive expert testimony on market power and foreclosure. The DOJ's willingness to bring a second hospital antitrust action within a single calendar year suggests further enforcement activity targeting similar contracting structures across the industry remains probable [1][2].