Clinical Psychologist in Singapore – Assessment & Therapy


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.
–> Learn more

Therapy for High-Functioning Professionals

Individual therapy focused on executive functioning, emotional regulation, burnout recovery, identity integration, and sustained performance without internal collapse.
–> Learn more

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.
–> Learn more

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.
–> Learn more

Child & Adolescent Services

Developmentally informed assessment and therapy for children and adolescents, with structured parental collaboration and behavioral guidance.
–> Learn more


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.