
Structured Psychological Care for Complex ADHD, Trauma, and Overlapping Conditions
Comprehensive assessment and therapy for high-functioning adolescents and adults whose difficulties are layered, and feel often misunderstood.
You May Be Here Because…
You function well on the outside — but internally something does not (perhaps has never) fully add up.
- You suspect ADHD, anxiety, or mood issues, yet you know that it feels more complex.
- Trauma, burnout, or chronic stress complicate concentration and regulation.
- You live with a medical condition that affects clarity, energy, or mood.
- You perform at a high level professionally, but struggle privately with shame and/or self-doubt.
- Previous therapy helped, but did not fully resolve the underlying formulation.
Put simply – this practice is particularly suited for individuals seeking depth, diagnostic clarity, and structured integration.
An Individualized Approach
I do not believe in checklist diagnosis nor surface symptom management or reduction.
In our work together, we will emphasize:
- Careful differential diagnosis
- Lifespan developmental formulation
- Trauma-informed and culturally-responsive assessment
- Integration of medical and psychological variables
- Identity and shame integration work
–> Learn more about Dr. Ong’s general approach to assessment and therapy
Services
ADHD & Complex Diagnostic Assessment
Comprehensive evaluation integrating developmental history, structured measures, and careful formulation — particularly in presentations where ADHD overlaps with trauma, mood, or medical conditions.
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Therapy for High-Functioning Professionals
Individual therapy focused on executive functioning, emotional regulation, burnout recovery, identity integration, and sustained performance without internal collapse.
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ADHD & Trauma Overlap
Psychotherapy addressing the interaction between trauma history and attentional or regulatory difficulties — distinguishing what is ADHD, what is trauma, and how they interact.
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Care in the Context of Medical Conditions
Support for individuals managing chronic illness, pain, fatigue syndromes, or other medical conditions affecting cognitive and emotional functioning.
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Child & Adolescent Services
Developmentally informed assessment and therapy for children and adolescents, with structured parental collaboration and behavioral guidance.
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Professional Background

Mian-Li Ong, Ph.D.
Founder, Clinical Director
Principal Clinical Psychologist
Registered Psychologist (S’pore)
- Advisor, Singapore Register of Psychologists (SRP)
- Presidential Citation, American Psychological Association (APA)
Dr. Ong is a clinical psychologist with formal training in child and adolescent psychology and extensive experience across medical and psychiatric settings.
Professional experience includes:
- Recipient of an APA Presidential Citation
- Clinical training experience including the Mayo Clinic
- 60+ research presentations at international conferences and peer-reviewed journal publications
- Advisory and community mental health contributions in Singapore, multiple professional memberships in USA and Singapore
→ Learn more about Dr. Ong
Is This the Right Fit?
This practice may be less suited for you if:
- You are seeking emergency psychiatric care or crisis stabilization.
- You are primarily looking for medication management without psychological assessment or therapy.
- Your objective is brief symptom relief without structured formulation or deeper work.
For families seeking behavioral support, parent management training, or PCIT-informed intervention, structured developmental work is available.
If unsure, a brief consultation can help determine suitability.
Begin with clarity
If you are seeking careful assessment, diagnostic nuance, and integrative psychological care, you are welcome to reach out.
Mian-Li Ong, Ph.D.
Clinical Psychologist
clinic@lightfull-psychology.com
Clinical Psychologist in Singapore specialising in adult ADHD assessment and therapy.
