Imagine a massive space where members of the Seattle-area health care community, from startups to health insurance companies to heavy-hitting research universities, could collaborate to solve pressing health care problems. That's the vision for the Cambia Grove, a 9,000-square-foot facility that is currently under construction and set to open in 2015 at the corner of Ninth Avenue and Olive Way. The new facility won't be far from where Amazon is building its new campus and where several new biotech…