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DaVita HealthCare Partners Inc. on Tuesday reported gains in its third-quarter income and revenue, surpassing Wall Street expectations, and also raised its financial guidance for the year. The Denver-based health care company said it made $215.9 million, or $1 per diluted share, on revenue of $3.5 billion for the period that ended Sept. 30. DaVita plans to make significant investments in the areas of information technology, compliance and physician recruiting. The company also recently announced that it would expand its headquarters operations in Denver. (Wallace, 11/3)

Greenwood Village-based Envision Healthcare is growing again. The company on Tuesday announced an agreement to acquire Dallas-based Questcare Medical Services and its billing division, QRx Medical Management, for about $135 million. Questcare is expected to generate annual net revenues of $160 million, Envision said in a release. Questcare, founded in 1996 in Texas, was purchased in 2005 by 51 of the company's full-time physicians to become "a truly democratic emergency medicine group characterized by a one-member/one-vote policy," according to the company's website. (Keeney, 11/3)