Health insurers denied “at least 1 in 8 standard requests” when prior authorization was required across Medicare Advantage, Medicaid and Obamacare last year, KFF said.

Health insurers denied “at least 1 in 8 standard requests” when prior authorization was required across Medicare Advantage, Medicaid and Obamacare last year, KFF said.

Insurers denied between 12% and 18% of standard prior authorization requests across market segments in 2025, a