Health care advocates say the measures will harm access to necessary treatment, particularly for people with disabilities.
The governor will require providers, insurers and others in the health care industry to report their yearly price increases.
State officials likened the free tool to Consumer Reports because it will allow users to compare the quality and cost of medical care at 19 of the state’s health care organizations.
Nine of the 16 health systems in Connecticut ended 2017 in the black, according to a report by the state Office of Health Strategy. Collectively, the systems took in about $14.2 billion in the fiscal year that ended on Sept. 30, 2017. After expenses, this left about $580 million — a 4 percent total margin.