Insurer reports · ten organizations checked so far
See what each insurer has made public.
These pages bring together the insurer’s own prior-authorization report, the public numbers we can compare, and the gaps that make a report hard to check. They are not grades for care and they do not describe what happened in your individual case.
| Insurer | A number from the public record | Public report |
|---|---|---|
| Kaiser Permanente | 19.5% of standard requests denied, flagship So. California Medicare contract (H0524), 2025 | Posted · full data |
| UnitedHealth Group | 12.8% of MA prior-authorization requests denied in 2024 — the highest of any major insurer | Summary on web · data blocked |
| Cigna | 27% of standard prior-authorization requests denied, CY2025 — with no request counts disclosed | Non-compliant · no counts |
| Humana | 5.8% of MA prior-authorization requests denied in 2024 — among the lowest of major insurers | Posted · full data |
| Highmark | 4% of standard MA requests denied on its largest contract (H3916), 2025 | Posted · errors found |
| Centene | 12.3% of MA prior-authorization requests denied in 2024 — second highest of major insurers | Fragmented |
| Elevance Health | 4.2% of MA prior-authorization requests denied in 2024 — the lowest of major insurers | Scattered |
| Molina Healthcare | 22% of in-network marketplace claims denied in 2024 — second highest of the nineteen largest | Portal-locked |
| Blue Cross Blue Shield of Michigan | 4.2% of 800,694 standard Medicare Plus Blue requests denied in 2025 — with 88% of appeals won by patients | Posted · full data |
| CVS Health (Aetna) | 19.9% of its MA denials were appealed in 2024 — the highest appeal rate of any major insurer | Percentages only |