Psychologist in Tualatin, Oregon Colten Larsen, Psychologist

Gender Identity: Male

Ages Served: 15-65+

Appointments: In-office and Online

Manages Medications: No, provides testing & therapy only

Accepts Insurance: Yes - View accepted plans

Colten Larsen, Psy.D

Dr. Colten Larsen is a licensed psychologist at LifeStance Health who provides comprehensive psychological and neuropsychological testing services to children, teens, and adults across Oregon. With a strong foundation in clinical and forensic assessment, he supports individuals navigating a wide range of mental health, cognitive, and developmental concerns by offering detailed evaluations that lead to accurate diagnoses and practical treatment recommendations. Dr. Larsen partners with clients, families, and care teams to ensure that each assessment reflects the full complexity of a person’s experience and strengths. His clinical expertise includes the evaluation and differential diagnosis of ADHD, autism spectrum disorders, and mood and anxiety disorders, as well as complex presentations involving developmental disabilities, psychosis, and head injuries. Dr. Larsen is especially passionate about the intersection of trauma and neurodevelopment, providing insight and clarity for individuals struggling with PTSD, school avoidance, somatic concerns, and obsessive-compulsive symptoms. His testing approach is thoughtful, affirming, and inclusive, offering clients and families a roadmap to understanding and growth. Dr. Larsen has a particular interest in working with LGBTQ+ individuals, neurodiverse populations, and those with histories of head trauma or fetal alcohol exposure. His testing process is designed to be collaborative and affirming, helping clients feel seen while uncovering patterns that can inform tailored care plans. Whether evaluating cognitive functioning, emotional regulation, or behavioral concerns, Dr. Larsen brings a warm, precise, and trauma-informed lens to each evaluation. Outside of his clinical work, Dr. Larsen enjoys reading urban fantasy novels, watching anime, and spending time outdoors through paddle boarding and forest bathing. He’s also an avid gamer and enjoys connecting with his large and lively family—and his two beloved cats. These personal passions reflect his appreciation for curiosity, creativity, and connection, values he brings into every aspect of his work.