Northwest Neurodiagnostics, Inc. is the largest licensed company providing surgical neuromonitoring services in the Pacific NW.

Northwest Neurodiagnostics Inc. (NNI) provides intraoperative neurophysiologic monitoring (IONM), which offers real-time assessment of patients' neurological function during surgeries involving the brain, spinal cord or related nerve structures. NNI is 100% locally owned, based in Seattle, and operates with a large staff of locally based technologists. With over 130 years of cumulative IONM experience, we have gained a reputation for providing reliable and high quality IONM.