Psychological Testing and Evaluation Services - St. Louis, MO

Clarity, Crafted with Care.

A professional man with glasses, wearing a dark suit and light blue shirt, smiling against a dark background.

I’m a licensed clinical psychologist with deep expertise in clinical assessment of complex psychological issues including personality, neurodiversity, attention-executive functioning, and emotional/behavioral issues. For over a decade, I taught and supervised clinical evaluation at the graduate and postdoctoral levels, overseeing more than 2,000 evaluations across academic medical centers, community clinics, and private practice settings. My background informs a rigorous, practical approach to every client—delivering clear answers, precise differential diagnoses, and concrete recommendations that lay the groundwork for real progress and lasting change.

Assessment & Testing Specialties

  • ADHD / Executive Functioning

  • Personality / Social - Emotional Functioning

  • IQ & cognitive-strengths

  • Dyslexia and Other Learning Disabilities

  • Gifted-placement evaluations

Why Choose Dr. Nanney?

  • Licensed PhD psychologist (MO #MO2014023811)

  • Peer-reviewed author & former university professor

  • Evidence-based methods —no gimmicks

  • HIPAA-secure telehealth or in-office options

Contact me for more information or to schedule a free 20-minute intro call.