FONAR Corporation, together with its subsidiaries, engages in the research, development, production, and marketing of magnetic resonance imaging (MRI) scanners for the detection and diagnosis of human diseases in the United States.

The company operates in two segments, Medical Equipment, and Physician Management and Diagnostic Services.

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 also 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 compliance matters, and development and implementation of practice growth and marketing strategies.

It owns and operates diagnostic imaging facilities in Florida; and manages MRI scanning facilities. The company markets its scanners to private diagnostic imaging centers and hospital outpatient imaging facilities.

FONAR Corporation was founded in 1970 and is based in Melville, New York.