Health insurers shape financing and care through provider negotiations, coverage rules, and claims management, but they are only one part of the system.
Higher prices from hospitals, doctors, and drug companies remain a major driver, especially where concentrated provider markets limit insurer bargaining power overall.
Administrative complexity also adds costs, with public and private programs using different rules, paperwork, and processes across the fragmented health system nationwide.
Prior authorization and claim denials can frustrate patients and providers; these tools aim to control costs and avoid unnecessary care when possible.
Meaningful improvement would require broader changes: addressing provider prices, simplifying administration, and rethinking how care is paid for and delivered throughout the US.
