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Source: AMA, Competition in Health Insurance: A Comprehensive Study of U.S. Markets, December 2023
Source URL: https://www.ama-assn.org/system/files/competition-health-ins...
Notes: Data are based on commercial, combined PPO+HMO+POS+EXCHANGE product markets. Market shares are based on total enrollments in the U.S., summed from the insurers' state-level enrollments.