FONAR Corporation, together with its subsidiaries, operates as a magnetic resonance imaging (MRI) company primarily in the United States. It is involved in the research, development, production, and marketing of medical scanning equipment, which uses principles of MRI for the detection and diagnosis of human diseases. The company operates in two segments, Medical Equipment segment, and Physician Management and Diagnostic services segment. It provides Upright MRI scanner that allows patients to be scanned in weight-bearing conditions, such as standing, sitting, bending, or lying down. The company offers non-medical management, including administrative services, billing and collection services, credentialing services, contract negotiations, compliance consulting, purchasing IT services, hiring, conducting interviews, training, supervision and management of non-medical personnel, storage of medical records, office space, equipment, repair maintenance services, accounting, assistance with