Dr. McKinzie
Psychologist, PhD
Verified by Psychology Today Verified by Psychology Today
Let's Connect (636) 378-3225
Available both in-person and online
3930 Old Highway 94 South 102 Saint Charles, MO 63304
I'm Dr. McKinzie, a Licensed Clinical Psychologist and Nationally Certified School Psychologist who believes every child deserves to understand how they learn best and feel their best. My practice offers comprehensive evaluations and evidence-based therapy for children, teens, young adults, and parents addressing anxiety, depression, OCD, ADHD, autism, learning differences, and other mental health concerns. Whether through therapy or evaluation, I take time to understand your child's unique profile and develop practical solutions that work for you, your child, your family and their school.
What I love most is seeing "lightbulb moments"...when a child understands why reading feels hard, when a teen learns to manage ADHD independently, or when parents discover new support strategies. I don't just provide reports or therapy; I offer ongoing support through therapy and consultation as you navigate recommendations and life transitions together.
When I'm not working, you'll find me with my husband, son, and dog Ivy, cooking, hiking, traveling, or repurposing furniture. My mission is simple: guiding young minds and growing bright futures. Do you think we may be a good fit? Please reach out for a free consultation; I'm here to support your journey every step of the way.
Call or Email Dr. McKinzie Duesenberg-Marshall now for a free 15 minute consultation - (636) 378-3225
Let's Connect (636) 378-3225
Finances
Fees
- Individual Sessions $150
- Couple Sessions $200
- Sliding scale: apply if you may be eligible
Payment Methods
American Express, Cash, Check, Health Savings Account, Mastercard, VisaInsurance
- Out of Network
Dr. McKinzie Duesenberg-Marshall
Psychologist, PhD
Call or Email me for a free 15 minute consultation now - (636) 378-3225
Qualifications
- Verified by Psychology Today Licensed by State of Missouri / 2025021316 McKinzie Duesenberg-Marshall
- In Practice for 3 years
- Attended University of Missouri - Columbia, PhD in Educational, School, Counseling Psychology, Graduated 2023
- License: Illinois Department of Financial and Professional Regulation 071011421 / 2025
- Certificate from PSYPACT Commission 22917 / 2025
Education and Years In Practice
Additional Credentials
Dr. McKinzie Duesenberg-Marshall
Psychologist, PhD
Call or Email me for a free 15 minute consultation now - (636) 378-3225
Specialties and Expertise
Top Specialties
- Child
- Caregivers
- School Issues
Expertise
- ADHD
- Anger Management
- Anxiety
- Autism
- Behavioral Issues
- Coping Skills
- Depression
- Divorce
- Education and Learning Disabilities
- Family Conflict
- Impulse Control Disorders
- Obsessive-Compulsive (OCD)
- Parenting
- Peer Relationships
- Relationship Issues
- Self Esteem
- Self-Harming
- Sports Performance
- Stress
- Substance Use
- Suicidal Ideation
- Thinking Disorders
Dr. McKinzie Duesenberg-Marshall
Psychologist, PhD
Call or Email me for a free 15 minute consultation now - (636) 378-3225
Client Focus
Age
Toddler ,
Children (6 to 10) ,
Preteen ,
Teen
Participants
Individuals ,
Family ,
Group
Communities
Bisexual Allied ,
Immuno-disorders ,
Intersex Allied ,
Non-Binary Allied ,
Queer Allied ,
Single Parent ,
Transgender Allied
Age
Toddler ,
Children (6 to 10) ,
Preteen ,
Teen
Participants
Individuals ,
Family ,
Group
Communities
Bisexual Allied ,
Immuno-disorders ,
Intersex Allied ,
Non-Binary Allied ,
Queer Allied ,
Single Parent ,
Transgender Allied
Treatment Approach
Types of Therapy
- Acceptance and Commitment (ACT)
- Biofeedback
- Cognitive Behavioral (CBT)
- Dialectical Behavior (DBT)
- Exposure Response Prevention (ERP)
- Family / Marital
- Family Systems
- Interpersonal
- Person-Centered
- Positive Psychology
- Strength-Based
Dr. McKinzie Duesenberg-Marshall
Psychologist, PhD
Ask about what different forms of therapy will be like. Email or (636) 378-3225
Location
Primary Location
Minds in Progress
3930 Old Highway 94 South
102
Saint Charles, MO 63304
(636) 378-3225Email Me
Additional Location
Saint Peters, MO 63376
(636) 378-3225Nearby Areas
Dr. McKinzie Duesenberg-Marshall
Psychologist, PhD
Call for a free consultation now - (636) 378-3225