ADHD evaluations completed in rushed ten-minute appointments with simple checklists often miss the complexity of how attention and executive functioning actually work in the brain. David Nowell has spent over 25 years revolutionising neuropsychological assessment and non-medication ADHD management, becoming an internationally recognised expert in translating complex brain research into practical, life-changing strategies.
As a clinical neuropsychologist in private practice since 1999 and adjunct instructor at Clark University, Dr. Nowell specialises in comprehensive ADHD evaluations that reveal the full cognitive profile – not just deficits, but strengths that can be leveraged for success. His TEDx talk, “Two ways to support loved ones with ADHD,” exemplifies his gift for making neuropsychological concepts accessible to both professionals and families. Recognition as Worcester’s top psychologist in 2015 reflects his reputation for conducting thorough, compassionate assessments that provide clear answers and actionable recommendations.
Dr. Nowell’s expertise spans clinical neuropsychology, comprehensive ADHD evaluation, executive functioning assessment, and neurodiversity-affirming approaches. His passion lies in helping clients distinguish “essential from non-essential” life priorities while developing personalised management strategies that don’t rely solely on medication. He specialises in cases where previous evaluations have been inconclusive, where clients seek alternatives to medication, or where families need practical tools for managing ADHD across different life contexts.
What sets his training apart is depth combined with practical wisdom. Nowell doesn’t just teach assessment protocols – he shows clinicians how to conduct truly comprehensive evaluations that capture the whole person, identify cognitive strengths, and translate findings into strategies that work in real-world settings. His international workshops on executive functioning and non-medication ADHD management give practitioners evidence-based alternatives to standard approaches.
For your practice, expect to gain advanced neuropsychological assessment skills, tools for identifying ADHD look-alikes, and comprehensive non-medication intervention strategies. His approach particularly benefits clinicians who want to move beyond surface-level ADHD evaluations to assessments that truly inform treatment planning and life success.
Quick Win: Nowell’s “bright line rules” technique helps families create clear, non-negotiable structure that supports ADHD brains without constant battles – often eliminating homework struggles and daily conflicts within weeks.
Qualifications
- Ph.D., Clinical Psychology, University of Alabama
- B.S., Psychology, Tulane University, 1995
- Licensed Psychologist in MA
- 25+ years clinical experience
- Private practice since 1999
Teaching & Roles
- Clinical Neuropsychologist, Private Practice, Northborough, MA, 1999–present
- Adjunct Instructor, Neuropsychology, Clark University Psychology Program, current
- International Speaker & Workshop Leader, David Nowell Seminars, 2000–present
- Visiting Lecturer, East Tennessee State University Medical School, 2002–present
Media & Speaking
- Podcast guest: Harkla, All Things Sensory, ADHD Essentials
- YouTube educational content creator
- International speaker: US, Australia, and globally
- Professional workshops on ADHD, executive functioning, neuropsychology
- University guest lectures and continuing education programs
Specialised Expertise
- Comprehensive ADHD evaluation and differential diagnosis
- Non-medication ADHD management strategies
- Executive functioning assessment and intervention
- Neurodiversity-affirming approaches to ADHD
- Rejection sensitivity and social competency in ADHD
- Cognitive strengths identification and utilisation
Ready to conduct ADHD evaluations that truly inform treatment and transform lives? Discover how Dr. Nowell’s neuropsychological expertise can elevate your assessment skills and provide clients with comprehensive, strength-based understanding of their unique cognitive profile.