Nikan hospital is a private hospital opened in 2011 and is one of the first-class and modern hospitals in Tehran. It got the first rank in Accreditation and Patient Safety (APS) and became the first private hospital in Iran to get the Green Award International certification in 2014. Its services are pain clinic, sleep clinic, cardiovascular, ENT, maxillofacial, orthopedics, obstetrics and gynecology, general surgery, pediatrics, neurology, neurosurgery, dermatology, urology, rheumatology, internal medicine, vascular surgery, endocrinology, gastroenterology, hematology and oncology.