Amazon, Berkshire Hathaway and JPMorgan Team Up to Disrupt Health Care

SEATTLE — In a sign of just how fed up corporate America is with the country’s expensive and often confusing health care system, three behemoths — Amazon, Berkshire Hathaway and JPMorgan Chase — announced on Tuesday that they would form an independent health care company for their employees in the United States.

The news added further uncertainty to an industry already reeling from attempts by new players to attack a notoriously inefficient health care system. The lines between traditionally distinct sectors, such as pharmacies, insurers and providers, are increasingly blurring.

CVS Health’s deal last month to buy the health insurer Aetna for about $69 billion is just one example of the shifts underway. Amazon’s potential entryinto the pharmacy business is also reverberating.