For the past 25 years, US News and World Report has been listing the “best hospitals” in the United States. In a Viewpoint article in this week’s JAMA, the magazine’s top health analysts describe how they are expanding and changing the way they rate hospitals. The current ratings aren’t designed for use by patients in need of typical hospital care. That’s changing. The US News team has spent more than a year analyzing more than 5 million patient records regarding more than a dozen common procedures and medical conditions from more than 4,300 hospitals. Ratings for five of these — hip replacement, knee replacement, coronary artery bypass surgery chronic obstructive pulmonary disease, congestive heart failure — were published online today. The new ratings use only performance measures such as patient safety, technology, and survival rates after admission. Keep in mind that ratings like these can help, but they’re mostly limited to data, and aren’t the whole picture. Other organizations also provide hospital rankings and ratings.