Which professional role primarily evaluates and treats functional impairments?

The occupational therapist primarily evaluates and treats functional impairments because this role specifically focuses on enabling individuals to participate in meaningful activities of daily living. Occupational therapists assess the physical, psychological, emotional, and environmental factors that may affect a person's ability to perform tasks. They use various therapeutic techniques and adaptive strategies to help clients regain or develop skills needed for everyday activities, such as self-care, work, or leisure.

This role is distinct from others, like the physical therapist, who primarily concentrates on physical mobility and rehabilitation of movement-related challenges. While both occupational and physical therapists address impairments, occupational therapy encompasses a broader scope that includes the psychosocial aspects of recovery and adaptation to life's activities. Thus, the occupational therapist's unique approach is critical in treating functional impairments across various contexts, making them the best fit for this question.