Clarity Starts Here.
Comprehensive autism and ADHD evaluations, neuropsychological testing, and individualized therapy. In person in Orange County and via telehealth across California.
No waitlist
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Accepting new clients
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Aetna & IEHP accepted
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Self-pay available
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No waitlist • Accepting new clients • Aetna & IEHP accepted • Self-pay available •
You Deserve Answers. Not More Confusion
Maybe you've been told "you're fine" when nothing feels fine. Maybe your child is struggling and no one can tell you why. Maybe you've spent years pushing through anxiety, attention problems, or social exhaustion wondering if there's something deeper going on.
You're not looking for a quick label. You want someone who will actually listen, dig into the full picture, and give you a clear path forward.
That's exactly what I do.
My Services
Neuropsychological & Psychological Evaluations
Thorough, individualized assessments for autism, ADHD, learning differences, cognitive functioning, and complex diagnostic questions. For children, teens, and adults. Every evaluation is tailored and never cookie-cutter.
Individualized Therapy
Evidence-based, insight-oriented therapy for anxiety, complex PTSD, ADHD, autism, and emotional regulation. Grounded in psychodynamic theory and adapted to how your brain actually works.
Why Families and Adults Choose Dr. Campbell
No Waitlist
You shouldn't have to wait months for answers. I'm currently accepting new clients for both evaluations and therapy.
Neurodiversity-Affirming
I don't see neurological differences as deficits. I see them as variations in how people process, relate, and engage with the world. My work is built on understanding your strengths…not just your struggles.
Rare Dual Expertise
I'm both a licensed clinical psychologist and a board-certified behavior analyst; a combination that gives me a uniquely comprehensive lens on how people think, feel, and function.
Truly Individualized
No two brains are the same. Every evaluation I conduct and every therapy plan I design is built from the ground up for that specific person. There is no template.
Neurodivergent Minds Move the World Forward
The way you think isn't a problem to be solved, it's a lens that shapes how you see, create, and connect. Neurodivergent individuals bring pattern recognition that others miss, creative problem-solving that breaks through conventional limits, and a depth of focus and passion that drives real innovation.
Society needs every kind of mind. My work is about helping you understand yours, with accuracy, depth, and compassion, so you can stop fighting against yourself and start building a life that actually fits.
Whether you're seeking a diagnosis for the first time, navigating life after a late discovery, or supporting a child who experiences the world differently, you belong here.
About Dr. Campbell
Dr. Lindsay Campbell is a licensed clinical psychologist (PSY35915) and board-certified behavior analyst (BCBA) specializing in comprehensive psychological and neuropsychological evaluations across the lifespan. She holds a Doctor of Clinical Psychology (Magna Cum Laude), a Master's in Applied Behavior Analysis, and advanced training in school neuropsychology. She is also an Assistant Professor of Behavior Analysis at National University.
Dr. Campbell is a queer, neurodiversity-affirming clinician who provides a safe, inclusive space for all clients — including LGBTQ+ individuals and families. Her practice is grounded in clinical precision, deep compassion, and a commitment to creating clarity in even the most complex diagnostic questions.
Ready to Get Started?
Schedule a free 15-minute consultation to talk about what you're looking for and whether I’m a good fit.
