Insiders
6-17-2011 6:22:10 PM

WASHINGTON — A quiet revolution is transforming how medical care is delivered in this country, and it has very little to do with the sweeping health care legislation that President Obama just signed into law.

But it could have a big impact on that law’s chances for success.

Traditionally, American medicine has been largely a cottage industry. Most doctors cared for patients in small, privately owned clinics — sometimes in rooms adjoining their home.

But an ...