A look to the past, directions for the future.

This article represents the history of primary care and behavioral health integration at Group Health Cooperative (GHC) over the last decade, and foreshadows probable futures for this work into the next decade. To build from a logical progression, the article responds to a series of questions: 1. Why integrate primary care and behavioral health? 2. What has been done so far and how well has it worked? 3. Keeping the end in mind, what's the idealized picture of integration for the future? 4. How to get from here to there? What will help or hinder the effort? and 5. Again, why make these efforts to integrate?