Healthcare Bluebook, owned by privately held CareOperative LLC, provides free online tools designed to enable consumers to understand how much they should pay for healthcare services. The company website allows consumers to look up the fair market cash price for thousands of medical procedures, diagnostic tests, medications and other services. The company’s Fair Price is the amount a cash paying patient should pay for a service. Specific price data are available by US zip codes, allowing users to customize the results to their local area.