In 2006 Igor Efimov established of a program for the comprehensive rehabilitation of children with speech and behavioral disorders, ASD. His scientific and practical activity focuses on pathology of speech, hearing, perception and behavior of children, violations of active attention; non-invasive brain stimulation; sensory disintegration; development of methods of functional diagnostics and improvement of hardware assistance approaches.

Doctor Efimov graduated from St. Petersburg State Pediatric Medical University with specialty in pediatrics. The topic of his postgraduate study was "Justification of a complex non-drug method of treating children with ADHD".

Igor Efimov is a certified trainer of treatment methods such as Interactive Metronome, Fast ForWord, TLP, InTime, APPPE. He is a scientific consultant and member of the scientific (advisory) council of companies involved in the development of methods and devices for the rehabilitation of children, medical consultant at many Russian and foreign clinics and centers.

Doctor Efimov is an author/co-author of many books and publications, frequent speaker at conferences, trainer of practical and theoretical courses, webinars.