Price transparency alone does not lead to lower prices for health care services, according to an analysis of the New Hampshire HealthCost transparency program by the New Hampshire Insurance Department and the Center for Studying Health System Change.

..the study found public price reporting had no impact on price variation across providers, a result attributed in part to the lack of competition among providers and few incentives for consumers to compare providers based on price.

This isn’t surprising, but it does underscore just how many things have to work together to create a health care market in which patients shop for value, defined by the combination of efficiency and quality. The study’s authors wrote:

Whatever the extent of provider competition in a particular community, price transparency efforts are unlikely to spur significant price shopping by consumers as long as insurance benefit designs continue to contain little incentive for consumers to choose low-cost providers. In New Hampshire, as well as nationally, financial pressures on both public and private employers may result in more widespread adoption of high-deductible plans, tiered-provider networks and other benefit designs aimed at making consumers more cost-conscious when choosing providers. As more employers aggressively pursue such strategies, more consumers will find incentive to use price transparency tools like HealthCost.

However, there are limits to the extent to which increased patient cost sharing can be expected to lead to more active shopping by consumers. Some New Hampshire stakeholders suggested making HealthCost a more useful shopping tool by adding information about more “big-ticket items” such as heart bypass surgery and hip replacements. However, prices for expensive services often exceed a patient’s deductible even under a high-deductible plan, which would reduce that patient’s incentive to shop for price; in some cases, prices may exceed a patient’s annual out-of-pocket maximum as well, which would eliminate the price-shopping incentive altogether.