Cigna

Cigna is the third-worst insurer due to a 2023 investigation revealing medical directors denied over 300,000 claims in two months, spending only 1.2 seconds per case review. Its PXDX system flagged claims for automatic denial without opening patient records, prompting a California Department of Insurance probe. This efficiency is worse than #4 Centene's, as Cigna's denial rate is 50% higher, attracting congressional scrutiny for such rapid rejections.