Autism Spectrum Disorder (ASD) is a neurodevelopmental condition that affects communication, social interaction, and behaviour. While often associated with childhood, autism is a lifelong condition that can significantly impact adults. Many adults with autism remain undiagnosed, particularly women, due to factors like masking (camouflaging autistic traits) and gender biases in diagnostic criteria.
Service Categories: Autism Testing
Dr Munidasa Winslow
Dr Munidasa Winslow is a leading and renowned psychiatrist with over 35 years of experience in general psychiatry and addiction medicine. Dr Winslow graduated from the National University of Singapore (NUS) with a Master of Medicine in Psychiatry, and began his career at the Institute of Mental Health (IMH) in 1988, where he played a pivotal role in establishing and developing Singapore’s modern addiction treatment system. As Chief of IMH’s Addiction Medicine Department, he worked closely with the Ministry of Health to establish the National Addictions Management Service (NAMS), the nation’s first comprehensive public programme for addiction care.
Recognised as one of Asia-Pacific’s foremost experts in addiction psychiatry and impulse control disorders, Dr Winslow has published extensively and is a sought-after speaker and thought leader at both the regional and international conferences. Dr Winslow is an accredited Master Addiction Counsellor and Clinical Supervisor, testifying his commitment to holistic, evidence-based care with rehabilitative approaches.
His contributions span across the public service, forensic psychiatry, medical education, and community advocacy. He has served as an expert to Singapore’s courts, helped establish WE CARE Community Services, and is an Adjunct Associate Professor at the NUS Yong Loo Lin School of Medicine. Dr Winslow is strong advocate of recovery-oriented practice and peer inclusive care. In 2014, Psaltcare was established to focus on sustaining mental health recovery within the community.
In 2011, Dr Winslow founded Promises Healthcare, where he currently serves as the CEO and Senior Consultant Psychiatrist. Promises Healthcare is the largest private psychiatry care institution, where he continues to lead and champion multidisciplinary mental health and addiction services locally and regionally. Come end-2026, The Winslow, a nation’s first purpose built private inpatient centre dedicated to the treatment of substance use and behavioural addictions will open its doors, setting a new benchmark for high quality and personalised private care in the region.
Tan Su-Lynn
Tan Su-Lynn is a Principal Educational Psychologist who has been working in the field since 2007, including over a decade at the Ministry of Education (MOE) supporting children with special needs. She has extensive experience conducting psychological assessments and interventions, helping schools identify and support children with special needs, and consulting for schools and parents on learning and behavioural intervention strategies.
Dr Terence Leong
Dr Terence Leong is a Senior Consultant Psychiatrist who specialises in general adult psychiatry and medical psychiatry, and is respected in the field of forensic psychiatry.
Dr Leong has occupied multiple key roles at the National University Health System, which oversees several hospitals, national speciality centres, and polyclinics. In addition, he was also appointed to be a senior lecturer at the Yong Loo Lin School of Medicine.
Dr Joseph Leong Jern-Yi
Dr. Joseph Leong is well known to be warm and welcoming to all who have met him. He listens actively to assess what is happening and makes recommendations, going through various options for both patients and caregivers who seek his help.
He believes that recovery is possible for all and can be successful when there is appropriate support and adequate skills training – so he looks beyond finding the best combination of medications to recommending talk therapy and psycho-social rehabilitation and community partnerships.
He is highly skilled in motivational interviewing as well as solution-focused brief therapy and has been promoting health coaching approaches to all he meets. He is committed to finding the best possible solutions for the recovery of those under his care.
Before joining Promises Healthcare, Dr. Joseph Leong has actively served in both the public and people sectors to promote recovery and build community capabilities and capacity.
Dr Paulette Reyes Po
Dr Paulette Po has more than 20 years of experience supporting children, adolescents, adults, women, and families with their mental health. She works with a wide range of concerns including attention difficulties, autism, anxiety, mood challenges, stress, and emotional difficulties.
She takes time to understand each individual’s story and works collaboratively with patients and families. Her approach is calm, supportive, and practical, helping people make sense of their experiences and move forward in a way that feels manageable.
Dr Po integrates medical care with psychological approaches and works closely with families when supporting children. She is also a mother of three, which informs her understanding of parenting challenges and family life.
She aims to provide a safe and supportive space where individuals and families can feel heard, understood, and supported.
Dr Sandor Heng
Dr Sandor Heng is a skilled and experienced dual diagnosis clinician. He has a Doctorate in Clinical Psychology and has worked in both private and public health sectors in Australia and Singapore. Though he describes himself as a behaviourist by heart and was schooled in Cognitive-Behavioural Therapy, he generally adopts an eclectic approach in treating addictions and mental health. By focusing on a strengths-based approach, he blends evidence-based practice with practice-based evidence to achieve clinical outcomes. He has a special interest in co-occurring disorders (addictive disorders and mental health disorders), and his philosophy of therapy is to be the best version of oneself, which he practices in his own life.
Prior to joining Promises, Dr Heng was the sole psychologist at the National Addictions Management Service (NAMS) in the Institute of Mental Health (IMH) for 7 years and was the team lead for the NAMS Inpatient Program. Dr Heng currently sits on the Board of the Singapore Anti-Narcotics Association (SANA) and is the Chair of the Rehab & Reintegration Subcommittee. He is also an Associate Faculty in the Singapore University of Social Sciences (SUSS), where he teaches the Addiction Module in the Masters of Counselling Program.
Dr Belinda Teo
Dr. Belinda Teo is an experienced clinical psychologist who has provided psychological evaluations and interventions to children and adults with a range of co-occurring mental health concerns. She holds a special interest in providing differential diagnoses for neurodivergent and gender-diverse populations.
Tom Maniatis
Tom Maniatis has over 20 years of experience in concurrent addiction and mental health treatment delivery, a Senior Addictions Psychotherapist at Promises Healthcare in Singapore, specializing in the targeted treatment of complex behavioral and substance dependencies. Recognized for his clinical expertise in navigating modern psychological challenges, he provides evidence-based interventions for gaming and internet addiction, substance abuse, deep-rooted trauma, and ADHD.
Recovery requires more than simply treating symptoms; it demands addressing the underlying distress. Tom brings a fiercely non-judgmental, person-centered approach to his practice, understanding that addiction and behavioral struggles are often intertwined with burnout, unresolved trauma, or strained family dynamics. By integrating proven therapeutic frameworks, including trauma-informed care and Cognitive Behavioral Therapy (CBT), he creates a psychologically safe environment where clients can confront core issues without shame.
Working extensively with struggling adolescents, high-stress professionals, and distressed family units, Tom focuses on practical, long-term outcomes. He helps clients dismantle destructive cycles, develop resilient emotional regulation strategies, and rebuild fractured relationships.
Consulting fluently in both English and Greek, Tom partners with his clients to provide the sustainable, real-world tools they need to reclaim agency over their mental health and move forward with clarity and purpose.
S C Anbarasu
S C Anbarasu is experienced and trained in the assessment and intervention of various mental illnesses and cognitive functioning. He is also qualified to administer a wide range of psychometric assessments, and prepare psychological reports for SPED admissions.