St. Charles, MO · Telehealth Nationwide
Child Psychology Services in St.Charles, Missouri
Strength-based therapy, neuropsychological evaluations, and parent coaching for children, adolescents, and families — from a dual-licensed psychologist who truly gets it.
-
Licensed in MO & IL
-
PSYPACT
-
ADOS-2 Certified
-
Ages 3-Adult
Dr. McKinzie Duesenberg-Marshall
PhD
NCSP
PSYPACT
ADOS-2
LICENSED MO & IL
LICENSED CLINICAL PSYCHOLOGIST - MISSOURI & ILLINOIS
PSYPACT AUTHORIZED - TELEHEALTH IN 40+ STATES
NATIONALLY CERTIFIED SCHOOL PSYCHOLOGIST (NCSP)
ADOS-2 CERTIFIED - AUTISM EVALUATION
"I believe every child holds incredible potential — sometimes they just need a little support to find it."
— Dr. McKinzie Duesenberg-Marshall
MEET YOUR PSYCHOLOGIST
Hi, I'm Dr. McKinzie
I'm a Licensed Clinical Psychologist and Nationally Certified School Psychologist serving children, adolescents, and families in St. Charles, MO and across PSYPACT-participating states via telehealth.
My dual training in both clinical and school psychology gives me a perspective most providers don't have — I understand not just what's happening inside your child, but how it plays out in the classroom, at home, and in relationships. I'm also a mom, which gives me an even deeper appreciation for the families I serve.
PhD, Educational, School & Counseling Psychology — University of Missouri-Columbia
Licensed in Missouri (#2025021316) and Illinois (#071.011421)
Member: APA, NASP, Council for Exceptional Children
WHAT WE OFFER
Specialized services for every growing mind
Every child is different. Our services are designed to meet your family exactly where you are, with warmth, expertise, and a plan built around your child's unique strengths.
04
Professional & School Consultation
IEP and 504 plan support, behavioral strategies, and professional development for schools and educators. Bridging the gap between clinical findings and classroom success.
WHY MINDS IN PROGRESS
What makes us different
Dual Clinical & School Psychology Expertise
Most psychologists are trained in one area. Dr. McKinzie holds dual licensure as both a clinical psychologist and a nationally certified school psychologist — giving your child a uniquely comprehensive perspective.
Telehealth Across 40+ States via PSYPACT
PSYPACT authorization means Dr. McKinzie can provide telehealth therapy to families across the country — not just Missouri. Quality care without geographic limits.
LGBTQIA+ Affirming Practice
Minds in Progress is a welcoming, affirming space for all children and families — regardless of gender identity, sexual orientation, family structure, or background.
Comprehensive Services Under One Roof
Therapy, evaluations, parent coaching, and school consultation — all from one trusted provider who knows your child. No referrals to juggle, no starting over with someone new.
Strength-Based, Family-Centered Approach
We don't just identify problems — we illuminate strengths. Every evaluation and therapy plan is built around what makes your child remarkable, not just what's challenging.
Available to Travel for Testing
Distance shouldn't be a barrier to exceptional care. Dr. McKinzie is available to travel for neuropsychological and psychoeducational testing when needed.
PSYPACT HEALTH
Therapy from anywhere in the country
Dr. McKinzie is authorized through PSYPACT to provide telehealth therapy across 40+ participating states — meaning exceptional, personalized care is available to your family regardless of where you live. Telehealth sessions are available for clients ages 12 and up.
RESOURCES & INSIGHTS
LATEST BLOG POSTS
Connect with us!
Follow us on Instagram, Facebook, and LinkedIn for the latest updates and news.
