Old Town Clinic - 727 W Burnside St, Portland, OR 97209-3514. Posted on October 23, 2020 October 23, 2020 by COVIDTESTINGCENTERS.COM. Status: Open CENTRAL CITY CONCERN is offering not specified COVID 19 testing in Portland, OR. They are currently Open for new patients. You can call or visit them anytime . According to https ....