TRA Medical Imaging is the community’s source for convenient diagnostic imaging throughout the south Puget Sound. We are a local partnership of sub-specialized radiologists providing high quality, patient-centered care since 1918. TRA has combined compassionate, individualized care with leading-edge technology to offer the highest expertise and quality in medical imaging. Our radiology physicians, technologists, and staff provide our referring physicians and patients with excellence in care. TRA provides over 1.