Not Insurance, Hospital Monopoly Drives Up Knee Surgery Prices

The Mechanism Behind the Numbers

The price gap is not random. In North Carolina, the same Blue Cross Blue Shield insurance plan covers a knee replacement at Catawba Valley Medical Center for around $16,000, but costs around $40,000 at Mission Hospital—more than double. The difference lies in market structure: Mission Hospital was born from a state-approved merger that consolidated the two largest hospitals in the Asheville region into a system with virtually no competitors. According to Yale University health economics professor Zack Cooper, hospital monopoly is one of the main drivers that has caused hospital fees to rise faster than any other industry sector over the past quarter century.

This is not an isolated case. Research cited in The Guardian shows that by 2013, 97% of the U.S. healthcare market was in a low-competition state according to the Justice Department's antitrust standards, and that figure rose to 99% by 2021. When the market shrinks to a few players, prices do not increase because treatment costs rise, but because hospitals have greater negotiating leverage with insurance companies.

Who Pays, and How Much

International comparisons show how unusual U.S. hospital fees are: a knee replacement in Germany, including the surgeon and five nights in the hospital, costs only around $22,000, while the hospital fee alone in the U.S. can reach $51,400. This gap cannot be explained by differences in service quality, but rather reflects the pricing structure of a market lacking competition.

Large hospital systems also exploit this advantage with commercial insurance companies. According to an analysis by Families USA cited by Forbes, HCA Healthcare charges 339% of Medicare rates for comparable services, a gap that can only be maintained if patients and insurers have few alternative options in the region.

The clearest losers are uninsured or underinsured patients. The case of an Indiana man who suffered a motorcycle accident without insurance and received a hospital bill of $629,386.50 from a regional hospital shows how the price gap can become a lifetime financial burden when no third party negotiates the price on behalf of the patient.

A Circular Regulatory Loop

Washington has tried price transparency tools rather than directly banning mergers. Since 2021, federal regulations have required hospitals to publicly disclose service prices, and the maximum penalty for non-compliant hospitals has increased to $2 million per year, compared to much lower initial penalties when the new rule was issued. However, price transparency does not necessarily mean lower prices: a patient can know the exact hospital fee at two facilities, but if one already has a regional monopoly, knowing the price does not help them negotiate.

This is precisely the bottleneck of current policy. Banning mergers requires federal or state agencies to intervene before a deal closes, but that approach is narrowing at the federal level, while price transparency tools only create public pressure rather than directly lower prices. A few states have chosen a different path, using their own laws to block or monitor hospital mergers with anticompetitive risks, but most of the U.S. market still operates by the old logic: larger hospitals, fewer competitors, higher prices.

What to Watch

The real question is not whether hospital fees will continue to rise, but whether there is a mechanism strong enough to decouple hospital mergers from automatic price increases. For consumers, the most available tool remains comparing publicly disclosed prices before choosing a non-emergency surgery facility, though that tool has clear limitations in regions with only one hospital system to choose from.

Read the original reports at the source links below.