Prior authorization denials vary widely among insurers, first-of-its-kind data shows

KFF's analysis reveals that denial rates for prior authorization requests vary significantly across Medicare Advantage, Medicaid managed care, and ACA marketplaces, with some insurers denying up to 25% of requests.

This Wire brief sits within Fusion42's coverage of Healthtech Infrastructure, and 3 sources have reported it between 14 Aug 2026 and 18 Aug 2026.