Visit Hospital Compare to find hospital star ratings and complications for hospitals in all states. Compare 3 hospitals at one time. Federal government (at medicare.gov) gives 1 to 5 stars and compares hospital ratings for heart attack (AMI), heart failure, pneumonia, COPD, stroke, hip & knee, preventing infections and surgical complications, timeliness of Emergency (ER) dept., use of medical imaging. Most data are from calendar 2019, but may vary by measure. Includes death rate comparisons from heart failure, heart attack, pneumonia, COPD, stroke, CABG; and return to hospital (readmission) rates. Click on Timely & Effective Care, or Complications. Shows patient satisfaction HCAHPS ratings (patient experience opinions) from 2019. Some info on colonoscopies and cataracts. Editor’s Pick because it’s the best of what is out there. The federal government standardized broad ratings for all hospitals, and most ratings are based on more than just Medicare patients. Small volume hospitals will not show data for some measures. Graphs are no longer available. Today’s stars may reflect older data than shown at the website. Read the fine print. Updated 2021.