Portland Business Journal

Oregon's Health CO-OP has grown its membership five-fold since last year to 10,000 members.

The growth stems from one big factor: Dr. Ralph Prows', the health plans' president and CEO, noted that much of the CO-OP's growth was driven by the popularity of its new "Select Network" plans, which cost about 4 percent to 5 percent less than broad network plans.

They were designed with an eye to lower-income consumers who make a little to much for Medicaid but qualify for federal subsidies, Prows said.