Established in 1921, The Portland Clinic is Oregon’s oldest, private, multi-specialty medical group. Today, with sophisticated medical technology, modern spacious facilities and dynamic medical specialists, a personal approach to each patient’s good health remains The Portland Clinic’s primary focus. The Portland Clinic’s six locations serve the greater Portland metropolitan area and care for more than 90,000 patients each year throughout the Northwest. The Portland Clinic - 100% Portland for 100 years.