Same hospital, same procedure — different price depending on who’s paying. Each payer’s median negotiated rate as a percent of Medicare, across every hospital × procedure cell where that payer publishes commercial rates. Spread is the typical same-procedure price ratio between this payer’s cheapest and most expensive hospitals (10th–90th percentile, median across procedures): a low median with a wide spread still overpays somewhere.
| Payer | Median vs. Medicare | Median | Spread (10th–90th) | Hospitals | Cells |
|---|---|---|---|---|---|
| Rocky Mountain Health Plans | 289% | 8.2× | 41 | 1,731 | |
| UnitedHealthcare | 305% | 4.5× | 77 | 3,706 | |
| Anthem BCBS | 322% | 5.6× | 77 | 4,387 | |
| Kaiser Permanente | 333% | 4.8× | 37 | 1,923 | |
| Cigna | 339% | 4.5× | 73 | 3,409 | |
| Aetna | 390% | 6.3× | 73 | 3,559 | |
| Humana | 390% | 6.1× | 22 | 905 |