Karen Tibbs. Her primary practice is as an Occupational Therapist, also practicing as an Occupational Therapy Assistant: Environmental Modification, an Occupational Therapist: Ergonomics, an Occupational Therapist: Feeding, Eating & Swallowing, an Occupational Therapist: Gerontology, an Occupational Therapist: Physical Rehabilitation, and an Occupational Therapist: Pediatrics.