About Me – Merijn Mattheijssen

Qualified Child Psychologist – Based in Vietnam

Hello, I’m Merijn Mattheijssen, a qualified child psychologist with over 15 years of experience supporting children and families. I currently run my own independent clinic here in Danang, and I’m also flexible to travel to both Hanoi and Ho Chi Minh City when needed.

Throughout my career, I’ve worked with a wide range of children, from those who are gifted or have learning challenges like dyslexia, to those dealing with behavioural or attention difficulties such as ADHD. Whatever the concern may be, my goal is always to understand each child as an individual and to provide practical, clear, and effective support.

My approach is direct and personal. I believe open communication helps build real connections with families and ensures that every step is clear. Each process begins with an intake session, followed by targeted assessments based on your child’s needs. Afterward, I prepare a detailed report and personally discuss my findings and recommendations with you.

As an independent practitioner, I guarantee that all information remains confidential and used solely to support your child’s growth and well-being. Even after the assessment process is complete, I remain available to offer guidance and ongoing advice whenever needed.

If you’re seeking clarity, understanding, and genuine support for your child, I’m here to help.

Contact me

Child-Psychology

Understanding your child starts here.

Every child grows and develops in their own way. It’s normal for children to face challenges, sometimes with learning, behaviour, or social interactions. But when those challenges continue or begin to affect daily life, it’s important to look deeper and understand what’s really happening.

This is where child psychology plays an essential role. A child psychologist helps uncover the reasons behind a child’s struggles, whether it’s a learning difference like dyslexia, an attention issue such as ADHD, or emotional and social stress.

Early understanding is key. When we identify a child’s needs in time, we can provide the right support, build confidence, and help them develop effective strategies for the future.

Through assessment and guidance, a child psychologist offers families clear insight and practical advice on how to support their child’s growth and well-being. Every child deserves to feel understood, supported, and able to thrive — that’s what child psychology is all about.

10 Reasons Parents Trust My Support

1. Fully Qualified and Experienced

Over 15 years of experience in education and child psychology, supporting children with learning, behavioural, and emotional challenges.

2. Deep Understanding of School Environments

Daily experience working with hundreds of students in international schools gives me insight into both academic and social development.

3. High-Quality, International Assessments

I use recognised tools such as the WISC-V, Raven’s 2, and CEFL-V, ensuring accuracy and worldwide acceptance.

4. Professional and Trustworthy

A TRC and Police Check can be provided upon request, and all reports meet international standards for educational and psychological use.

5. Independent and Confidential

I work privately, without any company involvement. All information remains strictly confidential.

6. Direct and Accessible

Parents work directly with me — open communication, clear guidance, and no middle layers.

7. Culturally Aware

I understand and respect Vietnamese values, ensuring a sensitive and balanced approach for local and international families.

8. Support That Continues

My work doesn’t stop after the report. I remain available to offer ongoing advice and guidance whenever needed.

9. Recognised Expertise

Reports are accepted by international schools and trusted by families across Vietnam and beyond.

10. Unique Presence in Vietnam

One of the few fully qualified Western child psychologists currently practicing in Vietnam, offering international expertise with local understanding.

My Services – My support

For ordering one of these services, please contact me

General Research - 800$

When something feels off — but you’re not sure what it is.

Sometimes parents notice their child struggling but can’t identify the cause. A general developmental research session helps explore learning, attention, and emotional areas to uncover where support is most needed.

Autism Evaluation - $800

Understanding your child’s world.

An autism evaluation helps uncover how your child experiences social, emotional, and sensory information — offering insight that leads to the right support and structure.

ADHD Screening - $800

Clarity for attention and focus challenges.

This screening identifies whether concentration or impulsivity difficulties may be linked to ADHD, helping families and teachers find practical strategies for daily success.

OCD Evaluation - 750$

Understanding patterns and reassurance needs.

Looks deeper into repetitive thoughts or behaviors, helping families understand anxiety-driven habits and guiding children toward more balance and calm.

Giftedness Exploration - 600$

Recognizing exceptional potential.

Explores advanced cognitive strengths and creativity to ensure gifted children receive the right academic challenge and emotional support.

Depression Support - $550

Finding light during difficult moments.

Helps identify signs of emotional distress, low motivation, or sadness — allowing for early emotional support and strategies to restore confidence and happiness.

Anxiety Support - $550

Helping children manage worry and fear.

Focuses on understanding what causes anxiety in your child’s life, providing clear strategies to reduce stress and build self-assurance.

Dyslexia Evaluation - 750$

Clarity for reading and writing difficulties.

Identifies specific language-based learning needs to help children gain confidence and develop stronger reading and writing skills.

Dyscalculia Evaluation - 700$

Understanding challenges with numbers.

Reveals why a child struggles with maths concepts, helping parents and teachers support steady progress in numeracy.

*Every service comes with an intake, assessment, interview, detailed report, a session to go over the results together, and a follow-up call to check in.
*All fees are including tax

Contact me

We’d love to hear from you! Whether it’s about any questions about my services feel free to reach out:

Email: merijn@psychologistvietnam.com
Zalo/ Whatsapp: 0812151220 (Vietnamese Only)
Zalo/ Whatsapp: 0855515688 (English Only)
Facebook: https://www.facebook.com/PsychologistVietnam/

💡 I will get back to you as quickly as possible.