Dr. Keyhani devotes much of his time to volunteer work both in the United States and abroad. Dr. Keyhani has been on the teaching faculty at the New York Eye and Ear Infirmary since 2007, where the mission is to serve the underserved of the New York area. He has also been on numerous surgical missions in the Philippines, Haiti and Honduras. He has been to Honduras every year since 2018. On surgical missions he performs eye exams, cataract surgery and plastic reconstructive surgery on people suffering from deformities from trauma and cancer as well as on children suffering from birth defects.