Effective January 1, 2021, US hospitals were required to upload information on their chargemaster prices (database of list prices), discounted cash prices (commonly charged to self-pay patients), and payer-specific negotiated prices.

Examine how prices vary and are associated with hospital characteristics, market competition, and hospital quality.

This observational study used data on 14 common medical services across 1599 hospitals in 2021. Descriptive and regression analyses were used to study price variation. Analyses adjust for hospital characteristics, market competition and state fixed effects.

Ninetieth -to-10th-percentile price markups factors (ratios) range between 3.2 and 11.5 for chargemaster; 6.1 and 19.7 for cash; and 6.6 and 30.0 for negotiated prices. Adjusted regression results indicate that hospitals’ cash prices are on average 60% (P<0.01) higher, and list prices are on average 164% (P<0.01) higher, than negotiated prices. Systematic pricing differences across hospitals were noted, with urban hospitals having 14% (P<0.01) lower prices than rural hospitals, teaching hospitals having 3% (P<0.01) higher prices than nonteaching hospitals, and nonprofit hospitals pricing 9% (P<0.01), and for-profit hospitals 39% (P<0.01), higher than government owned hospitals. In addition, hospitals that contract with more insurance plans have higher prices, hospitals in more competitive markets have lower prices, and higher quality hospitals have on average 5% (P<0.01) lower prices than lower quality hospitals.

Prices all vary considerably across US hospitals. High quality hospitals are associated with lower pricing across all three sets of prices examined. Hospital price transparency may help consumers better identify hospitals that provide both high quality, and low cost, care.