NH SB666

Requires parties to material health care transactions (mergers, acquisitions, private equity investments) to file written notice with the New Hampshire Department of Justice at least 60 days before closing, including details on ownership structures, debt financing, and market impact assessments.

Authorizes the Department of Justice to review transactions within 30 days and prohibit those likely to substantially lessen competition or harm consumers' quality of care, accessibility, or costs.

Prohibits private equity entities, for-profit owners, and management services organizations from interfering with licensed health care professionals' independent clinical judgment, including through productivity quotas that compromise patient care or compensation tied to reducing medically necessary services.

Establishes a 5-member legislative study committee (3 senators, 2 representatives) to examine private health insurers' practices, policies, premiums, and consumer impacts, with findings due by November 30, 2026.

Takes effect July 1, 2027 for the main regulatory provisions, with the study committee section effective upon passage.