Union Labor Life Insurance v. Pireno

Background

The dispute involved a Maryland insurer doing business in New York and a state chiropractic association that ran a ten-member peer review committee. A New York chiropractor sued, claiming the committee and the insurer conspired to limit competition and fix prices by judging which treatments were "necessary" and charges "reasonable." Lower courts split: a district court dismissed the suit finding an insurance exemption, the Second Circuit reversed, and the Supreme Court agreed to decide the exemption question.

Reasoning

The Court applied its earlier Royal Drug framework and asked whether the peer review practice (1) spreads or transfers policyholder risk, (2) is part of the insurer–policyholder contract relationship, and (3) is limited to the insurance industry. The Court concluded peer review failed these tests: it does not spread risk, it is a separate arrangement between the insurer and outside chiropractors, and it involves non-insurance parties. The Court therefore held the practice is not part of the "business of insurance."

Real world impact

By rejecting an automatic antitrust exemption for insurer-arranged peer review, the decision exposes reviewer groups, insurers, and healthcare providers to antitrust challenges when those reviews restrain competition. The Court left open other questions: it did not decide whether the practices are controlled by state insurance law or whether they amount to an unlawful boycott. Because this ruling addresses only the exemption question, further litigation may decide liability and state-law regulation.

Dissents or concurrances

Justice Rehnquist (joined by the Chief Justice and Justice O'Connor) dissented, arguing claim-adjustment and the contractual relationship are central to insurance and that peer review committees should fall within the McCarran-Ferguson exemption. The dissent emphasized legislative history and warned the ruling would curtail peer review practices used to help insurers evaluate medical claims.