ADHD Centre

Our Doctors


Dr Ananth Pullela

Consultant Psychiatrist

Dr Pullela is an International Senior Consultant Adult General and Forensic Psychiatrist. He is also a Psychoneuropharmacologist and, a Medico-Legal Expert with a Worldwide experience of well over 40 years to date, from Asia, Africa, Europe, South America and Australasia. Currently, he is working as a Medical Director, at Clinical Services, Mid North coast MHS, NSW Health.

Dr Pullela holds qualifications in Psychiatry as a Fellow of the Royal Australian & New Zealand College of Psychiatrists and also as a Member of the Irish College of Psychiatrists,
Ireland. He holds additional qualifications in psych neuropharmacology such as a
Master’s in Psychopharmacology (USA), a Diploma in Psychopharmacology (UK),
a Diploma in Alcohol & Drug Addiction Studies (UK) and Certificate of Achievement in ADHD, Kings College, London, UK.

In addition, Dr Pullela has extensive experience in the Medico-legal assessment & management of clients with ADHD and issues of Crime and in providing medico-legal reports to the Courts, Department of Veterans Affairs, Personal Injury Commission, and any Statutory Legal Organizations.

Dr Eileen Vuong

Consultant Psychiatrist

Since graduating as a Specialist Psychiatrist from Stellenbosch University in South
Africa, Dr Vuong has worked in the public, private and academic sector providing
care to culturally, ethnically, and socio-economically diverse patient groups.

She provides a holistic, individualised treatment plan that is tiered according to the
presenting problem, social context, available supports, presence of comorbidities
and patient preference. She combines both medical and psychological therapies,
using evidence-based treatments to help to assess and treat patients.

Her clinical areas of expertise and interest include ADHD, women’s mental health
(pregnancy and post-partum mental illness, premenstrual disorders, fertility
difficulties, miscarriage grief, perimenopausal mood disorders); Trauma-related
disorders (Acute stress and Post-traumatic stress disorders), Depression and Bipolar
disorders, Anxiety and OCD-related disorders.

She has published in several international journals, book chapters and presented her
research at international congresses. She completed a PhD in 2022 examining the
role of a biomarker in predicting the onset of post-traumatic stress disorder and
cardiometabolic disease in a large cohort of female rape survivors. She is an
Honorary Lecturer at the University of New South Wales and provides teaching to
medical students.

Dr Vuong accepts referrals for general psychiatry and ADHD assessments.


Dr Mohammad Faizal

Consultant Psychiatrist

Dr Faizal is a Fellow of the Royal College of psychiatrists, United Kingdom, and Royal Australian and New Zealand College of Psychiatrists. He has worked in psychiatry for over 20 years. He worked as a Clinical Director for Addictions in the UK and is currently working as a Clinical Director for adult services in Australia. He has experience working in a range of specialties including Adult Psychiatry, Addictions and Forensic Psychiatry. 

Dr Faizal is a General Adult and Addictions Psychiatrist with expertise in treating psychiatric disorders affecting adults of all ages. His clinical expertise includes disorders such as depression, anxiety, psychosis, bipolar disorder, OCD, PTSD, alcohol and drug misuse, adult ADHD, and perinatal disorders 

Doctor Faizal has worked with patients experiencing psychiatric sequel of brain injury and neurodegenerative disorders such as Parkinson’s, Huntington’s, and late-stage dementia. He has also worked with patients with autism spectrum disorders.

He has published in international journals in areas such as Addictions and Mood Disorders. He is passionate about timely and safe access to care for patients and has won many Clinical Excellence awards for patient-centred care when he was developing services in the UK. After two decades of work in the public sector, he now provides services for private patients. 

Dr Saurabh Vatss

Consultant Psychiatrist
MBBS, DNB (Psychiatry), FRANZCP

Dr Saurabh Vatss (MBBS, Diplomate of National Board in Psychiatry, FRANZCP) is a
consultant Psychiatrist at The ADHD clinic. He also provides consultation services to The Wollongong Hospital and South Coast Private Hospital, where he accepts referrals for outpatients and inpatients.

Dr Vatss has a keen interest to explore various unique facets of the human mind. That made him switch from his advanced training in respiratory medicine to Psychiatry. Having completed his specialist training in New Delhi, India, He spent time exploring the real implementation of conventional and alternative practices to manage mental health issues.

Currently, he also provide supervision of young psychiatry trainees and service development activities. He has keen interest in managing ADHD and related disorders. He is also affiliated with ADHD network and member of adult psychiatry of RANZCP.

Dr Steven Hook

Consultant Psychiatrist


Dr Stephen Hook has been in private practice adult psychiatry for over 25 years, working in a wide variety of clinical settings. Whilst he has assisted patients with the full range of mental health difficulties, he now specializes in Adult ADHD. He has a low-key but engaging style, aiming to make the assessment informative and useful for his patients. His treatment approach is practical and evidence-based but he also recognizes the need to customize treatment according to the patient’s situation and priorities.

Dr Phillip O’Rourke

Consultant Psychiatrist

MBBS, BA,.Bth. M Psychiatry, FRANZCP

Dr Phillip O’Rourke is a Senior Adult and Addictions Psychiatrist. His academic background includes a Fellowship with the Royal Australian and New Zealand College of Psychiatrists, a Master’s in Psychiatry and a Bachelor’s Degree in Arts and Theology.  

He has practised psychiatry in metropolitan, urban, rural and remote communities. He has a special interest in Aboriginal Mental Health and well-being, having worked in the Gulf Country of Queensland where he was the Clinical Director of Mental Health at North West Hospital and Health Service, Mt Isa Queensland. He has worked with indigenous communities in Blacktown, Broken Hill and Kalgoorlie. He has worked in private and public mental health services including NSW Justice and Forensic Mental Health focusing on Addictions and pharmacotherapy for opiate dependency.

During COVID-19, Dr O’Rourke has provided locum support for Mental Health Services in Wollongong, Hobart, Perth and Kalgoorlie. These positions have offered a wide exposure to the needs many people have in accessing Mental Health Services, particularly those with ADHD having difficulty accessing assessments and treatments. He has extensive experience in assessing patients with addictions, gambling problems and ADHD.


Dr Yasoja Chamilka Jayasinghe

Consultant Paediatrician
MBBS, DCH, MD (Paediatrics), FRACP

Dr. Chamilka is a general paediatrician with more than 20-year experience in all aspects of Paediatrics (newborns to adolescents) with a special interest in,

Behavioural problems (Autism, ADHD, other challenging behaviours) Developmental problems (Developmental delay, Learning difficulties) Management and coordination of care for children with chronic illnesses or complex needs.

She has worked in Sri Lanka, UK and Australia in clinical paediatrics, research and medical education. Her work ethic focuses on building the bond of trust with parents and children to ensure a long-term, fruitful medical relationship.


What is ADHD?

ADHD is not a ‘new and fashionable’ condition.  ADHD-like symptoms have been reported in the medical literature over the past 200 years.

ADHD is ‘a neuro-developmental disorder, with an extraordinarily strong genetic component, which clinically manifests itself through its core, executive symptoms that stem from a Pre-Frontal Cortex (PFC) and subcortical brain structures dysfunction, probably due to a decreased Dopamine and Norepinephrine activity in these brain regions’ (Caetano, 2021).


The core symptoms of ADHD are difficulties relating to:

  • Attention/Concentration 
  • Reading and Writing 
  • Short-term memory 
  • Planning and Organisation 
  • Time management 
  • Procrastination 
  • Impulsivity and Hyperactivity  
  • Emotional dysregulation

Multidimensional diagnosis

At the ADHD Centre we conduct a multidimensional diagnosis, which encompasses:

  • Past/current ADHD core symptoms and ADHD-related symptoms (e.g., anxiety, decreased motivation, emotional dysregulation) and symptoms stemming from co-morbidity with other independent conditions, e.g., Bipolar disorder, OCD, Panic
    disorder, Gambling disorder 
  • Past/current personal history 
  • Past/current academic history 
  • Past/current professional history 
  • Family history (ADHD and other conditions)
  • Previous/current treatment attempts 
  • Adult ADHD Self-Report Symptoms Scale

Treatment for ADHD

Treatment for ADHD is straightforward once properly diagnosed.  In most cases, it is a matter of choosing methylphenidate or dexamphetamine in the right dose for the patient, i.e., the dosage that yields the best results with the minimum side effects. Very few patients do not respond or tolerate these drugs. In these few instances, we have other alternatives for treatment.

When there is one or more independent, co-morbid conditions (e.g., bipolar disorder, OCD, Panic disorder, Personality disorder), these conditions usually require treatment on their own merit. The Sydney International ADHD Centre (at Shop 1B, Building A, 7-9 Kent Rd, Mascot) has already started its clinical activities and is seeing patients. It will soon initiate its research program.

An interactive site to help you understand the causes of ADHD will be made available for you in the near future.