Our Providers

Isabelle Oh, Psy.D. is a pediatric psychologist who completed her fellowship at University of Louisville School of Medicine – Norton Children’s Hospital, specializing in working with children with acute and chronic medical conditions. Prior to joining Children’s Behavioral Medicine Collaborative, she worked in Pediatric Psychology and Neuropsychology at Mary Bridge Children’s for almost four years.

Katrina Rayls, Ph.D. is a pediatric neuropsychologist who completed her fellowship at the Medical University of South Carolina. Prior to joining Children’s Behavioral Medicine Collaborative, she worked in Pediatric Psychology and Neuropsychology at Mary Bridge Children’s for twenty years. Areas of specialization include pediatric oncology, traumatic brain injury, and neurodevelopmental disorders.

Chelsey Vadixx, Ph.D. is a pediatric neuropsychologist who completed her fellowship at Seattle Children’s Hospital. Prior to joining Children’s Behavioral Medicine Collaborative, she worked in Pediatric Psychology and Neuropsychology at Mary Bridge Children’s for five years. Areas of interest include children with chronic illness, transition to adulthood, and epilepsy.

Melanie Barnes, Ph.D. is a pediatric psychologist who completed her fellowship at Children’s Hospital of Oakland. Prior to joining Children’s Behavioral Medicine Collaborative, she worked in Pediatric Psychology and Neuropsychology at Mary Bridge Children’s for thirty years. Dr. Barnes has expertise in biofeedback as well as acute and chronic pediatric medical conditions.

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