Quality and Safety
Numerous Kaiser plans score high marks, while Tenet and Health Care Services plans among low scorers.
Rule calls for increased transparency and accountability by making surveillance results and performance results of certified health IT publicly available.
U.S. News data showed a lot more patient safety events, like pressure ulcers, nearly all of which had been present at the patient's admission.
Program cements two payment tracks and "pick your pace" approach while setting aside money to support small practices.
2014 legislation was successful in requiring hospitals to set up antibiotic stewardship programs to prevent overuse, but no tracking.
Humana saw enrollment in plans rated four stars or higher fall to 37 percent compared to 71 percent in the prior year's ratings, pushing the company's stock down close to 5 percent in morning trading.
The Affordable Care Act provides bonuses to higher quality plans that rate four or five stars on a five-star scale.
30 percent of all health spending, $750 billion, is wasted on fraud, administration and needless procedures, estimate says.
Almost 400,000 cardioverter defibrillators and cardiac resynchronization defibrillators could stop working with little notice, system says.
Those cared for at higher-cost hospitals have no greater chance of survival, the study found.