For the 2020 open enrollment period, the Centers for Medicare & Medicaid Services (CMS) will require that the federal and state insurance exchanges publicly display the five-star Quality Rating System (star ratings) for each health insurance plan sold on the exchange. The star ratings, which were developed by CMS, rank health plans on a scale of one (lowest quality) to five (best quality) based on medical care, member experience, and plan administration. Open enrollment for 2020 is November 1 to December 15, 2019. Public display of the star ratings is required under the Patient Protection and Affordable Care Act . . .