American Oncology Institute

About American Oncology Institute

Cancer Treatment Services International (CTSI), a wholly owned subsidiary of Varian Medical Systems Inc. Within CTSI, we operate across 3 business entities. 1) American Oncology Institute (AOI), stands as the leading and fastest-growing multidisciplinary oncology network with 18 hospitals in South Asia. AOI is known for its comprehensive cancer care powered by multi-disciplinary team of clinical excellence, world class technology & international protocols. 2) Citizens Specialty Hospitals, an ultra-modern 300-bed multidisciplinary facility spread across 3+ acres in Hyderabad, India, focused on providing holistic multi-specialty healthcare with advanced technology and facilities at par with international standards of care. 3) Ampath, is a diagnostic solution provider with a presence in over 20 states and 56 cities in India, Ampath boasts a Central Lab in Hyderabad, along with 15+ satellite labs, over 2200 collection points, and an extensive menu of 2600+ tests. .