Katia Fredriksen, Ph.D. (she/her/hers)
Pediatric Neuropsychologist | DIRECTOR OF CLINICAL TRAINING
I am a clinical psychologist, pediatric neuropsychologist, and Director of Training at the Stixrud Group. I complete comprehensive evaluations with children and adolescents who may have differences related to attention/executive functioning or learning, autism, and/or emotional difficulties. I work collaboratively with my clients and their families, schools, and other involved providers to develop an in-depth view of the client’s profile of strengths and relative weaknesses, to provide diagnostic clarification where needed, and to offer practical, actionable recommendations designed to support the client’s growth and positive development. I have worked at the Stixrud Group since 2010 and am a PSYPACT Provider.

I have roots in Norway and New Zealand and grew up in the D.C. area. I attended Princeton University and earned a Bachelor’s Degree in Psychology with a certificate in French language and culture. I then spent a year studying and working abroad before starting graduate school at the University of Massachusetts Boston, where I earned my Ph.D. in Clinical Psychology. My clinical training included a combination of inpatient and outpatient psychotherapy and assessment with children, adolescents, and adults. My graduate research focused on health behaviors, including sleep and substance use, and I have published several articles in peer-reviewed journals and have presented at national and international conferences. I completed two years of post-doctoral training at a private neuropsychology practice in the Boston area, where I focused on autism, genetic disorders, learning disorders, and attention and executive functioning in a pediatric population. In addition to my clinical work, I offer lectures to parent groups and professional organizations.
Along with my colleague, Dr. Yael Rothman, I share evidence-based information through Instagram @neuropsychmoms. In addition, we have collaborated to write a series of children’s books about different diagnoses. Different Thinkers: ADHD and Different Thinkers: Autism were published in 2024 and 2025, and Different Thinkers: Dyslexia will be published in 2026.
Services & Expertise
- Provision of neuropsychological evaluations for children and adolescents
- Assessment of cognitive, language, fine motor, attention/executive functioning, and academic skills, as well as socioemotional functioning
- Diagnosis of a range of conditions, including ADHD, language and learning disorders, anxiety and other emotional vulnerabilities, and autism
- Provision of relevant recommendations, e.g., related to educational and learning needs, parenting strategies, other appropriate interventions and supports, and resources and referrals
- Attendance at school meetings as needed, to support attainment of appropriate accommodations and services
- Provision of consultations and of educational talks
Education & Training
- Two years of post-doctoral training in pediatric neuropsychology
- Ph.D. in Clinical Psychology from University of Massachusetts Boston
- B.A. in Psychology from Princeton University, magna cum laude

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