RadNet, Inc. is a provider of freestanding, fixed-site outpatient diagnostic imaging services in the United States. As of December 31, 2016, the Company operated directly or indirectly through joint ventures, 305 centers located in California, Delaware, Florida, Maryland, New Jersey, New York and Rhode Island. Its centers provide physicians with imaging capabilities to facilitate the diagnosis and treatment of diseases and disorders. Its services include magnetic resonance imaging (MRI), computed tomography (CT), positron emission tomography (PET), nuclear medicine, mammography, ultrasound, diagnostic radiology (X-ray), fluoroscopy and other related procedures. As of December 31, 2016, the Company had in operation 257 MRI systems, 157 CT systems, 47 PET or combination PET/CT systems, 48 nuclear medicine systems, 479 X-ray systems, 279 mammography systems, 551 ultrasound systems and 104 fluoroscopy systems.