List of state Insurance Departments for all states. If you like to browse, your state’s site may have additional information about health insurance. These links are provided by the National Association of Insurance Commissioners (NAIC), the organization of insurance regulators from the 50 states, the District of Columbia, Puerto Rico and the other four U.S. territories. The NAIC site has a Consumer Information Source to find medical loss ratios, financial information, and complaint information on the exchange, HMOs and other health insurance plan providers.