Dr. Ehsan Mahmoudi, "Orthopedic and Spine Surgeon and Specialist", graduated from the University of Tehran with the highest rank in his specialty. Member of the American Association of Orthopedic Surgeons (AAOS). Member of the National Elite Foundation. Supplementary course in the repair of bone nonunions from the Russian Elizarov Institute. Board of Orthopedics from Tehran University of Medical Sciences. The youngest doctor with an ATLS certificate in Iran. Obtained international BLS and ACLS certificates as the youngest doctor in Iran. Supplementary course in knee replacement under the supervision of Professor Hoffman, the largest knee surgeon in the world. Treatment of foot and ankle disorders in the only specialized ankle center in Iran - Foot and Ankle, University of Tehran.