Vt. Stat. tit. 18 § 9413
Each health insurer with more than 200 covered lives in this State shall establish an Internet-based tool to enable its members to compare the price of health care in Vermont by service or procedure, including office visits, emergency care, radiologic services, and preventive care such as mammography and colonoscopy. The tool shall include provider quality information as available and to the extent consistent with other applicable laws and regulations. The tool shall allow members to compare price by selecting a specific service or procedure and a geographic region of the State. Based on the criteria specified, the tool shall provide the member with an estimate for each provider of the amount the member would pay for the service or procedure, an estimate of the amount the insurance plan would pay, and an estimate of the combined payments. The price information shall reflect the cost-sharing applicable to a member's specific plan, as well as any remaining balance on the member's deductible for the plan year.
18 V.S.A. § 9413