The patient experience rating comes from a survey called the Hospital Consumer Assessment of Healthcare Providers and Systems, or HCAHPS. The survey is given to adult patients between 48 hours and six weeks after leaving the hospital.
The overall hospital quality rating comes from data hospitals report to the Centers for Medicare and Medicaid Services (CMS) for the Hospital Inpatient and Outpatient Quality Reporting programs. The data is summarized into a single star rating for each hospital. You can visit the CMS website for more information about the star ratings.