Welcome to Big River Psychology!
Big River Psychology is a multi-disciplinary clinic offering an array of services to support families that are seeking better understanding of psychologic, psychiatric, and genetic conditions. We offer neuropsychological and psychological testing, Autism evaluations, psychiatric evaluations, medication management services, and genetics consultations.
Drs. Nixon and Haugen are child psychologists who conduct psychological evaluations, including Autism evaluations. Dr. Heather Zaluski is a child psychiatrist offering psychiatric services and medication management to children, teens, and young adults. Dr. Van Winkle is a neuropsychologist providing comprehensive neuropsychological evaluations to the adult population.
Big River Psychology also offers dyslexia remediation services. These 1-on-1 sessions are provided by a team of local teachers who have acquired additional training in dyslexia remediation.
In addition, in November 2026 we will be expanding our services to include Genetic Consultations. Willow Sheehan, FNP is opening "Advanced Practice Genetics" and will be providing genetic consultations across the lifespan.
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 - Child psychological evaluations -
Medicaid - 2 years
Private Insurance - 3 to 6 months
Private pay - 1 to 2 months
Private pay express - 2 to 3 weeks
Dr. Van Winkle - Adult neuropsychological evaluations
Medicaid / Medicare - 6 months
Private insurance - 2 months
Willow Sheehan, FNP - Genetics Consultations
Scheduling patients in November 2026