Marriage of convenience. As they adapt to reform, insurers court historic adversaries: physician practices.

As reform's changes continue to ripple through the marketplace, insurers are moving to buy physician practices. Why would docs agree to such deals? Some who've made the move say they see it as a strategic decision. "We wanted to partner with a player with lots of market share and lots of markets. We were little and we were in need of a bigger playground to play in," says Alan Hoops, left, of CareMore.