American Shared Hospital Services operates in medical device leasing and direct patient radiation therapy services, leasing Gamma Knife radiosurgery units, linear accelerators, and proton beam radiation therapy equipment to healthcare providers while also owning and operating stand-alone cancer treatment centers in the United States, Peru, Ecuador, and Mexico. The company generates revenue through two segments: equipment leasing arrangements structured as either fee-per-use or revenue-sharing models, and direct patient services delivered at company-operated radiation therapy facilities. ASHS serves hospital systems, cancer centers, and healthcare networks through multi-year equipment agreements, typically with ten-year terms, and provides cancer treatment services to patients through owned or majority-owned radiation therapy centers.