+ Kristin B. Powell, PhD, ABPP-CN


Since completing her doctoral degree at the University of Colorado in Boulder, Dr. Kristin Powell has served the Colorado front range in private practice for over 15 years. She is board certified by the American Board of Clinical Neuropsychology, and conducts psychological and neuropsychological evaluations with children, adolescents and adults. Dr. Powell’s practice focuses on the assessment of individuals with brain related conditions, be they developmental (learning disabilities, ADHD, autistic spectrum disorders, psychiatric disorders), medical (seizures, brain tumors, genetic conditions) or acquired (brain injuries or psychological trauma). Her services range from brief consultations for treatment planning through comprehensive, integrative batteries and reports. She also provides therapy and “coaching” for older adolescents, adults and families.

Dr. Powell completed her undergraduate degree at Haverford College. There she participated in research on early language development and models of preschool education, with Dr. Kathy Hirsh-Pasek. After college, at Educational Testing Service, she contributed to research on educational policy, sex differences in cognition and arts education in public schools. This included participation in the Arts PROPEL program directed by Dr. Howard Gardner. Before beginning graduate school, she worked as a psychometrician at the University of Pennsylvania, completing neuropsychological testing on patients with schizophrenia, epilepsy and dementias. At CU, Dr. Powell’s graduate training with Dr. David Miklowitz focused on bipolar disorder, including its treatment via family therapy, and the neuropsychology of this complex condition. She completed her clinical psychology internship, and postdoctoral fellowship in child neuropsychology, at the Cambridge Hospital, affiliated with Harvard Medical School. She has taught undergraduate courses in neuropsychology at the University of Colorado, Boulder, and at Regis University, as an adjunct instructor. In 2007, she served as president of the Colorado Neuropsychological Society.

Since 2003, Dr. Powell has worked collaboratively with the Western Institute for Neurodevelopmental Studies and Interventions (WINSI), directed by developmental behavioral neurologist Kytja Voeller, MD. Working in proximity to WINSi has enabled her to see up close the benefits of multidisciplinary, empirically-based interventions for children with learning differences. Her own philosophy of practice is also inspired by the Therapeutic Assessment model developed by Dr. Stephen Finn. This model seeks to utilize the assessment process as an opportunity for learning, change and growth. Dr. Powell takes great pleasure in translating diagnostic assessment into treatment plans and next steps. Consultations and evaluations aim to provide road maps for healthy development, including resources, referrals and recommendations.

+ Jill Gitten Aloia, PhD, ABPP-CN


Dr. Jill Gitten Aloia is a licensed Psychologist in the state of Colorado practicing in the Boulder Valley. She is Board Certified in Clinical Neuropsychology by the American Board of Professional Psychology.

Dr. Aloia conducts neuropsychological evaluations of children, adolescents, and young adults through college age. Her practice focuses on the assessment of individuals with brain-related conditions, including those considered developmental (learning disabilities, ADHD, and autism spectrum disorders), medical (seizures, Tourette’s Disorder, and genetic conditions), and acquired (traumatic brain injury). She has subspecialties in working with twice exceptional students (children identified as gifted, with learning disabilities) and internationally adopted children who present with language, behavioral, or emotional regulation difficulties. Additionally, Dr. Aloia offers educational evaluations, and brief consultations for families seeking integration of information from other professionals. She also provides therapy for families seeking support with parenting, especially as it relates to their child’s diagnoses.

Since 2007, Dr. Aloia has served as the consulting Associate Director at the Western Institute for Neurodevelopmental Studies and Interventions (WINSI). WINSI is a multidisciplinary center providing diagnostic and intensive treatment services to children and adolescents with severe learning disabilities, language disorders, attention and executive dysfunction, and related behavioral or emotional disorders. Dr. Aloia supervises the team of therapists who treat students using a research-based program consisting of intensive, individualized interventions. She also works with parents of children in the program to ensure that together, the intervention and changes to the home environment maximize a child’s potential.

In private practice, Dr. Aloia pairs her training in general clinical psychology and family systems work with her expertise in pediatric neuropsychology, to provide truly comprehensive neuropsychological evaluations. With a focus on the whole child, these evaluations are designed to help families (and children) understand strengths and weaknesses, and outline a pathway forward.

Prior to joining the team at WINSI, Dr. Aloia was a Research Associate in the Department of Psychology at Brown University. She completed her pre-doctoral internship and post-doctoral training in life-span neuropsychology through the Brown Clinical Psychology Training Consortium, in the Brown Medical School. Dr. Aloia earned her doctorate in Clinical Psychology with a specialty in Pediatric Neuropsychology at one of the premier neuropsychology training programs - the University of Florida. There she received training in pediatric and adult neuropsychology, as well as individual and family therapy. Dr. Aloia co-taught neuropsychology classes at the University of Florida and Brown. She continues to supervise post-baccalaureate students who have gone on to careers in medicine, psychology, speech and language pathology, and special education.

Dr. Aloia has published scientific papers in peer-reviewed journals, including Journal of Child Neurology and Child Neuropsychology. Her research has focused on three primary areas: neurodevelopmental disorders, attention, and developmental dyslexia. Dr. Aloia presents at local, national, and international conferences and is nationally known for her work with children who have language difficulties. She also contributes her time to the field by sitting on the Board of Directors for the Untapped Potential Project.

+ Zachary Sussman, PhD


Dr. Zachary Sussman entered private practice as a pediatric neuropsychologist after completing a two-year postdoctoral fellowship at Children’s Hospital Colorado. He conducts psychological and neuropsychological consultations, brief assessments, and comprehensive evaluations with toddlers, children, adolescents, and young adults. He has experience working with developmental, psychiatric, rehabilitation, and neurologic populations. This includes children, adolescents, and young adults diagnosed with: Attention-Deficit/Hyperactivity Disorder, Learning Disorders, Language Disorder, Autism Spectrum Disorder, Mood and Anxiety Disorders, Genetic Disorders, Epilepsy, Cerebral Palsy, Spina Bifida, Traumatic Brain Injury, and Acquired Brain Injury. He also has expertise in evaluation and clinical management of youth with concussion, as well as diagnostic evaluation of autism using “gold standard” instruments such as the Autism Diagnostic Observation Schedule, Second Edition (ADOS-2).

Dr. Sussman completed a doctoral degree in Counseling Psychology at the University of Iowa, with diverse clinical training at settings such as the Belin-Blank Assessment and Counseling Center and University of Iowa Hospitals and Clinics (Departments of Psychiatry, Neurology, and the Center for Disabilities and Development). As a doctoral student, he maintained a commitment to research including attainment of a M.A. in Educational Measurement and Statistics, as well as authorship on numerous grants, professional presentations, and scientific publications. As a resident at Alexian Brothers Women and Children’s Hospital in Chicago, IL, he provided neuropsychological evaluations to youth with neurodevelopmental and medical conditions. Additionally, his residency included formal training in Cognitive-Behavioral Therapy (CBT), Acceptance and Commitment Therapy (ACT), and Exposure and Response Prevention (ERP). He then completed a two-year postdoctoral fellowship in pediatric neuropsychology within the Department of Rehabilitation Medicine and Division of Neurology at Children’s Hospital Colorado. As a fellow, Dr. Sussman conducted brief and comprehensive neuropsychological evaluations, as well as contributed to multi-disciplinary clinics for complex concussion, international adoption, non-accidental brain injury, epilepsy surgery, stroke, and neuro-oncology.

Dr. Sussman has specific interest in adapting a multicultural-relevant, client-centered approach to neuropsychology which focuses on an appreciation for individual differences. While maintaining clinical objectivity, he is committed to both empowerment and advocacy for his patients and their families. Dr. Sussman’s approach to evaluation is to promote a holistic understanding of the self that recognizes both strengths and areas of difficulty or growth, and uses the assessment process as an intervention itself. He serves as a resource for families both during and after the evaluation process, to support their journeys towards wellness, joy, and success.

+ Emily C. Maxwell, PhD


Dr. Maxwell’s practice focuses on conducting comprehensive neuropsychological evaluations with children and adolescents who experience cognitive, learning, or emotional challenges. She has particular expertise in working with children and adolescents with math learning disabilities, attention and executive functioning difficulties, medical diagnoses, and perinatal complications. She also has specific interest in performing more abbreviated evaluations for toddlers and preschoolers to assist with their development and school readiness. Dr. Maxwell strives to help families understand their child’s strengths and areas of growth and to provide them with the most appropriate supports, resources, and interventions for their child.

Dr. Maxwell earned her B.A. in Psychology from Willamette University in Salem, Oregon. Prior to attending graduate school, she served as a research assistant in the Developmental Brain Imaging Lab at Oregon Health & Science University. She then received her M.A. and Ph.D. in Clinical Psychology from the University of Houston, specializing in Neuropsychology. Dr. Maxwell went on to complete her pre-doctoral internship in Pediatric Neuropsychology at Children’s Hospital Colorado. She then completed a three-year post-doctoral fellowship in Pediatric Neuropsychology at Children’s Hospital Colorado and University of Colorado Denver School of Medicine. Throughout her training, she worked with a wide range of neurological conditions, including stroke, traumatic brain injury, anoxia/hypoxia, encephalitis, congenital heart disease, cerebral palsy, genetic disorders leukemia, brain tumors, and epilepsy. As part of her fellowship, Dr. Maxwell conducted research on pediatric stroke through a large multi-center grant funded by the American Heart Association and the Bugher Foundation. This unique opportunity fostered her passion and commitment to help children who have suffered from all forms of stroke (arterial ischemic, hemorrhagic, cerebral sinovenous thrombosis, perinatal) and cardiovascular disease.

Dr. Maxwell has extensive research experience focusing on the cognitive, academic, and psychological outcomes in children who have sustained acquired brain injuries, specifically stroke and moderate to severe traumatic brain injuries. Her research endeavors have resulted in numerous oral and poster presentations at national conferences such as the International Neuropsychological Society meeting and the International Stroke Conference, as well as local organizations such as the University of Colorado Brain Injury Research Group. She has also participated in several publications found in various peer-reviewed journals, including Cortex, Brain and Cognition, Cerebral Cortex, Stroke, and Blood Cells, Molecules and Diseases. Additionally, Dr. Maxwell recently co-authored a chapter on learning disabilities in the upcoming second edition of the Clinical Neuropsychology Study Guide and Board Review. She has also been asked to present for parent groups to discuss the role of neuropsychology and the process for obtaining school services.

Taken together, Dr. Maxwell’s training, clinical experiences, and research have helped to solidify her enthusiasm for supporting patients and their families. She is dedicated to helping children achieve their optimal level of success in the school, home, and community settings.

+ Heidi J. Prioux, BA, Practice Manager and Psychometrist

After completing her Bachelor’s degree in Psychology and Biology cum laude at The University of Alabama in Huntsville, Heidi Prioux began her professional career managing The Human Perception and Performance Laboratory at The University of Illinois’ Beckman Institute in Urbana-Champaign. There she also began training to administer neuropsychological tests. After graduate coursework at the University of Colorado-Colorado Springs, she entered private practice in 1998 as a clinical psychometrist, testing hundreds of children, adults and geriatric clients for over 10 years.

Ms. Prioux then served as a civilian clinical and research psychometrist on the Mountain Post, Fort Carson, Colorado, where she evaluated Service Members with traumatic brain injuries at the Warrior Recovery Center. Next, she conducted evaluations of children and adults at Colorado Springs HealthCare Partners’ Neurology Specialty Clinic before assuming the position of Chief Research Associate at Nationwide Children’s Hospital, The Research Institute-Center for Biobehavioral Health, in Columbus, Ohio. As coordinator of the Biobehavioral Outcomes (Research) Core and Lead Psychometrist, Ms. Prioux trained staff psychometrists and coordinated neuropsychological evaluations for more than 20 national and international research studies aimed at improving outcomes for childhood survivors of catastrophic illnesses.

She has currently returned to the state she calls home for her greatest passions: Experiencing the splendor of the Rocky Mountains and serving her community in private practice. Ms. Prioux makes it her mission to provide a relaxed, positive and empowering experience for each child and adult seeking neuropsychological services at New Peaks Neuropsychology.