Mayo Clinic–trained · APA Presidential Citation · Published Researcher
For neurodivergent kids, the parents raising them, and the adults still figuring themselves out.
I trained at UNC, Duke, and Mayo Clinic. And yes, I’m ADHD myself.
Maybe your child’s morning meltdowns aren’t getting better. Maybe your teenager has gone quiet in a way that doesn’t feel like a phase. Or maybe you’re the one who’s been white-knuckling it for decades and you’re finally asking why everything feels so hard.
Whether it’s your child or yourself, you don’t need another website that tells you therapy is “a safe space for growth.” You need someone who will be straight with you, and who’s seen enough to know when something needs attention.
I have ADHD. The small caseload, the sixty-to-ninety-minute sessions, the thirty-minute gap between clients, those aren’t just good clinical practice. They’re what my own brain needs to do this work well. That’s why I built this clinic the way I did.
Small caseload, by design. I take on fewer clients so the work goes deeper.
The room where the work happens. Telok Ayer, Singapore.
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Three places the work begins
Neurodivergent kids and the parents raising them
Most parents who arrive here have already been doing the work. The school called. The pediatrician suggested a screening. Someone said “ADHD” or “autism” out loud, and the conversation that followed was harder than the conversation before it. I work with kids whose minds are wired a little differently from the standard textbook, and with the parents who are now learning a different way to parent them. PCIT and parent-training when the work is behavioural; assessment and a clear report when it’s diagnostic; family-side coaching when the bandwidth is yours, not just theirs.
Adolescents finding their footing
Adolescence is a different beast. The teen sitting across from me usually already knows something is up, what they need from a clinician is closer to a specific kind of seriousness than to comfort. I work with teens managing ADHD, anxiety, OCD, low mood, school refusal, the shape of their identity not landing where they expected. The work moves when we get clear about what they actually want different in their life, not what their parents want different, not what school wants different. Theirs.
Adults still figuring themselves out
A lot of adults arrive here in their thirties or forties with the dawning sense that the way they’ve been operating isn’t working, and that the diagnosis they were always quietly suspicious of might actually be the thing. ADHD that was missed because they were verbal and conscientious. Anxiety that was always there but never had a name. OCD running quietly under the surface. I do careful adult ADHD assessments, exposure-based work for anxiety and OCD, and the longer-arc work that comes with realising you’ve been navigating without the map other people seem to have.
Not sure which of these is you, or whether any of them are? Start here, it’s the page I wrote for the in-between feeling.
Why this practice exists.
AMERICAN PSYCHOLOGICAL ASSOCIATION
The first graduate student in APA history to receive the Presidential Citation.
In 2018, the American Psychological Association awarded Dr. Ong the Citizen Psychologist Presidential Citation for making psychological science freely accessible to communities worldwide. He remains the only graduate student to have ever received this distinction. The award is nice. What it represents is what matters: expertise should be shared, not gatekept.
100+ research contributions.
Published in the Journal of Anxiety Disorders, Journal of Abnormal Psychology, and Assessment. Recognised by the American Psychological Association with the first-ever graduate student Presidential Citation.
Neurodivergent clinician
I have ADHD. I made it through a PhD, a Mayo Clinic fellowship, and years of clinical work before understanding why my own brain worked the way it did. That perspective shows up in every ADHD assessment I do.
Recognized by the profession
100+ research contributions across peer-reviewed journals, international conferences, and symposia. Awarded over $150,000 in competitive research grants from the APA and leading scientific bodies. Co-founder of Helping Give Away Psychological Science (HGAPS), a nonprofit advancing open-access mental health resources worldwide.
Trusted by organizations
Consultant to NTUC First Campus, EtonHouse, LEGO, and Prudential. Expert commentator on CNA, The Business Times, and 8World.
Committed to giving back
Co-founder of HGAPS, a nonprofit making evidence-based psychological science freely accessible worldwide. Good science should serve everyone.
Why “Lightfull”?
The name is intentional. Light, because clarity is the starting point of good clinical work. Full, because I look at the whole picture, not just the part that’s hurting. Good psychology isn’t about shining a spotlight on what’s wrong. It’s about illuminating what’s actually there, the full context, so the path forward becomes clear.
A private practice built on honesty, depth, and doing right by the people who walk through the door.
Is this the right fit?
High-performing adults, executives, founders, and professionals who need a clinician who won’t waste their time and who understands complexity. Explore adult therapy
Adults exploring ADHD, who want a real assessment, not a 15-minute screening. I know what ADHD looks like when it’s been masked by intelligence, anxiety, or decades of compensating. See ADHD assessment details
Parents seeking clarity about their child’s emotional, behavioral, or developmental concerns from a clinician with pediatric-specific training. Resources for parents
International families, expats, third-culture families, and globally mobile professionals navigating transitions, repatriation, and cross-cultural identity. For international families
Professionals and organizations, schools, corporations, and healthcare teams seeking evidence-based consultation, training, or workshops. See consulting services · Talks and workshops
People who want to stop guessing and start understanding what’s actually going on.
If you’d like to read more before booking: a candid note about clinical fit, the screening tools library for a quiet self-screen, and lifespan-specific pages for early years (0–6), children, teenagers, young adults, and adults. The assessment hub covers what testing actually involves.