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Welcome to Big River Psychology!
Big River Psychology is a children’s mental health clinic specializing in neuropsychological and psychological testing, Autism evaluations, psychiatric evaluations and medication management services.
Drs. Nixon and Haugen are clinical psychologist who conduct psychological evaluations, and
Dr. Heather Zaluski is a child psychiatrist offering psychiatric services and medication management.
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Dr. Nixon, Dr. Haugen, and Dr. Zaluski provide evidence-based interventions to help you learn more about your child’s strengths, weaknesses, and treatment needs.​
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As of January, 2026, Big River Psychology is offering dyslexia remediation services. These 1-on-1 sessions are provided by a team of local teachers who have acquired additional training in dyslexia remediation.
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Current Wait Times
We try to keep our wait times current, but for the most up-to-date estimations, we recommend that you call or text us at (406) 201-1717.
Dr. Zaluski - Psychiatric evaluations and medication management - approximately 4 to 6 weeks.
Drs. Nixon and Haugen - Neuropsychological evaluations -
Medicaid - 12 - 18 months
Private Insurance - 6 to 9 months
Private pay - 3 months
Private pay express - 3 weeks