Lightfull Psychology

Lightfull Psychology is a private clinical psychology practice based in Telok Ayer, Singapore. It was founded by Dr. Ong Mian Li, a registered clinical psychologist who trained at the University of North Carolina at Chapel Hill, Duke, and the Mayo Clinic. The practice focuses on assessment and therapy for neurodivergent children, the parents raising them, and adults who are seeking clarity about longstanding difficulties. Its clinical specialisations include ADHD and neurodiversity across the lifespan, anxiety disorders and OCD, mood and bipolar-spectrum conditions, and paediatric behavioural concerns. The clinic is deliberately structured around a small caseload, with sixty-to-ninety-minute sessions and a thirty-minute gap between clients. Dr. Ong has stated that this design reflects both good clinical practice and her own needs as a clinician with ADHD. Services include ADHD assessment and therapy for children, teenagers, and adults, including late-diagnosed adults and women whose ADHD has been missed; exposure-based cognitive-behavioural therapy for anxiety disorders and OCD; and support for parents and families. The practice also offers a free Meet & Greet for prospective clients. Beyond individual therapy, Lightfull Psychology provides consulting and talks for organisations. Offerings include mental health programme design, keynote speaking and workshops, expert advisory, educator and teacher training, and media commentary. Dr. Ong has designed mental health programmes for organisations across education, finance, consumer brands, and the public sector, and has been an appointed consultant to NTUC First Campus. She is a regular commentator on CNA, The Business Times, and 8World. Dr. Ong is a registered psychologist with the Singapore Psychological Society (SRP No. 2512014) and serves as a review member for the Singapore Register of Psychologists. She holds a Ph.D. in Clinical Psychology from UNC Chapel Hill and has contributed to over 100 research outputs. Her doctoral mentor was Dr. Eric Youngstrom, and she trained in exposure-based CBT under Dr. Stephen Whiteside at the Mayo Clinic Pediatric Anxiety Disorders Clinic. The practice has been featured in CNA, The Business Times, The Independent Singapore, Singapore Global Network, and Advisory.sg.

Lightfull Psychology was founded by Dr. Ong Mian Li as a private clinical psychology practice in Singapore. Dr. Ong's path to founding the clinic began with doctoral training in clinical psychology at the University of North Carolina at Chapel Hill, where her mentor was Dr. Eric Youngstrom, a leading expert in evidence-based assessment. She subsequently completed a fellowship at the Mayo Clinic, where she trained in exposure-based cognitive-behavioural therapy under Dr. Stephen Whiteside at the Mayo Clinic Pediatric Anxiety Disorders Clinic. Her research career includes over 100 research contributions. Dr. Ong is neurodivergent herself, having ADHD, and has spoken about navigating a PhD, a Mayo Clinic fellowship, a research career, and the founding of a nonprofit and a private practice while learning to work with a brain that does not operate on the standard template. This personal experience informs the clinic's approach to assessment, treatment, and client care. The practice was established in Singapore and operates from Telok Ayer. It was built around a small caseload, with sixty-to-ninety-minute sessions and a thirty-minute gap between clients, a structure Dr. Ong describes as both good clinical practice and what her own brain needs to do the work well. The clinic serves neurodivergent children, the parents raising them, and adults who are seeking clarity about longstanding difficulties. Dr. Ong is a registered psychologist with the Singapore Psychological Society (SRP No. 2512014) and serves as a review member for the Singapore Register of Psychologists, evaluating other psychologists' credentials. She is also a review member for the SRP under the Singapore Psychological Society. The practice has been featured in CNA, The Business Times, The Independent Singapore, Singapore Global Network, and Advisory.sg. Dr. Ong is a regular commentator on CNA, The Business Times, and 8World. In addition to clinical services, Lightfull Psychology offers consulting and talks for organisations. Dr. Ong has designed mental health programmes for organisations across education, finance, consumer brands, and the public sector, and has been an appointed consultant to NTUC First Campus. The practice continues to operate as a private clinic in Singapore.

• Dr. Ong Mian Li completes Ph.D. in Clinical Psychology at University of North Carolina at Chapel Hill

• Dr. Ong completes fellowship at Mayo Clinic and trains in exposure-based CBT under Dr. Stephen Whiteside

• Lightfull Psychology founded in Singapore

• Dr. Ong appointed as review member for Singapore Register of Psychologists

• Dr. Ong appointed consultant to NTUC First Campus

Evidence-based, neurodiversity-affirming clinical psychology practice with a deliberately small caseload and doctoral-level expertise.

• ADHD assessment and therapy

  Comprehensive assessment and therapy for children, teenagers, and adults, including late-diagnosed adults and women whose ADHD has been missed.

• Exposure-based cognitive-behavioural therapy

  For anxiety disorders (generalised, social, separation, panic, health anxiety, specific phobias) and OCD.

• Paediatric behavioural support

  Support for children with behavioural concerns and their parents.

• Corporate consulting and talks

  Mental health programme design, keynote speaking, workshops, expert advisory, and educator training.

1. 1Clinical Psychologist Singapore | ADHD Assessment & Therapy | Lightfull Psychologylightfull-psychology.com
2. 2About Dr. Ong Mian Li | Clinical Psychologist Singapore | Lightfull Psychologylightfull-psychology.com
3. 3Consulting & Talks | Corporate Psychology | Lightfull Psychologylightfull-psychology.com
4. 4Is This a Good Clinical Fit? How I Decide and Who I Refer Tolightfull-psychology.com
5. 5Lightfull Psychologywikidata.org