Our Consultants

Dr. David Li

Consultant Psychiatrist - Adult

ChB. MRCPsych. DipPsychotherapy

Specialty Areas: ADHD, Anxiety, Depression, Bipolar Disorder

Experience: Over 20 years working with ADHD patients in the NHS, Canada, and New Zealand. Performed over 500 ADHD assessments since 2013 for the NHS.

Approach: Utilises a holistic approach, incorporating psychotherapy and exploring alternative treatments.

Dr. Nigel Tunstall

Consultant Psychiatrist - Adult

MBBS, MRCPsych

Specialty Areas: Assessment and diagnosis of ADHD and Autism

Experience: Extensive experience in psychiatry, research in impulsivity, and treatment of mental disorders.

Approach: Neuroscience-informed treatment, focusing on pharmacotherapy and optimal environment.

Dr Rebecca McLaren

Consultant Psychiatrist

MBBS, BSc (Hons), MRCPsych, PgDip, BUPA Registered

Specialty Areas: ADHD, Autism, Tics, Gender-Identity Development and Dysphoria, Anxiety and Mood disorders, Eating disorders, BDD, Psychosis, OCD, mental and physical health interface

Experience: Over 17 years as a consultant psychiatrist in the NHS, with broad experience in different settings. Excellent training at the Maudsley and Bart’s & The Royal London Medical School.

Approach: Offers thorough and compassionate assessments, formulations and treatment plans. Draws on a wide range of biopsychosocial and therapeutic approaches and has a Postgraduate Diploma in CBT from the Institute of Psychiatry.

Siobhán Birrell

Educational Psychologist

BA Psychology, MA Educational Psychology

Specialty Areas: Educational Profiles, Cognitive Profiles, Children and Adolescents, Learning Disabilities including but not limited to Dyslexia, Dyspraxia, ADHD, Autism

Experience: Education Psychology alongside teaching 

Approach: Conducts comprehensive assessments, considering co-occurring conditions and underlying neurodiversity. Develops personalised treatment plans based on the child's individual needs. Prioritises the best interests and well-being of the child while ensuring support for the family.

Dr Kahlil Memon

Consultant Neuropsychiatrist

MBBS, CCT in Psychiatry

Specialty Areas: Adult ADHD, Post-Traumatic Stress Disorder (PTSD), Acquired Brain Injury, Korsakoff Syndrome, Huntington’s Disease, Autism Spectrum Conditions

Experience: Extensive experience in the assessment and treatment of neuropsychiatric and mental health conditions. Leads a specialist inpatient neuropsychiatry unit at Cygnet St William’s Hospital. Senior roles in both community and inpatient services. Experienced in independent neuropsychiatric assessments for clinical and legal purposes.

Approach: Patient-centred, evidence-based care with a focus on clarity and compassion. Special expertise in complex ADHD cases, especially those influenced by trauma, neurodevelopmental history, or co-existing mental health difficulties. Committed to improving patients' functioning, quality of life, and long-term mental health.

Dr. Anabella Karla Barusic

Consultant Child & Adolescent Psychiatrist

MBBS, MD, MRCPsych, PGCert, MAcadMEd, CCT

Specialty Areas: ADHD, Autism Spectrum Disorder (ASD), Eating Disorders, Functional Neurological Disorders, Paediatric Liaison Psychiatry

Experience: With over 10 years of clinical experience in Croatia, the UK, and Ireland, Dr. Barusic has worked across a range of sub-specialties in child and adolescent psychiatry. Her expertise includes paediatric liaison, neuropsychiatry, neurodevelopmental disorders, eating disorders, early-onset psychosis, forensic psychiatry, and mood and anxiety disorders. She has worked in both community and inpatient settings and is actively involved in medical education and research.

Approach: Dr. Barusic takes a holistic, compassionate, and evidence-based approach to care. She is dedicated to patient-centred practice and works closely with young people and their families throughout their mental health journey.

Dr. Joseph Rodrigues

Consultant Psychiatrist - Adult

MB, BS, MRCPsych, MSc, CCT

Specialty Areas: Autism Spectrum and Treatment Resistant Psychiatric Disorders

Experience: Dr Rodrigues was previously Medical Director and National Clinical Director at Priory Healthcare. He has also worked as a Consultant Psychiatrist in community and inpatient rehabilitation, Early Intervention, Liaison Psychiatry, Assertive Outreach and acute inpatient and Home Treatment services within the NHS, independent sector and outside of the UK covering general adult, forensic and learning disability services.

Approach: I am interested in hearing your story and aim to use my significant  experience to assist you in achieving optimal mental health.

Dr. Shashi Kiran

Consultant Child and Adolescent Psychiatrist

MBBS, MRCPsych

Specialty Areas: ADHD, Mood Disorders (Depression, Bipolar Disorder), Anxiety Disorders, Stress-related Issues, Psychosis, Neurodevelopmental Conditions (ASD), Child Safeguarding and Child Protection.

Experience: 19 years of experience working as a Consultant Child and Adolescent Psychiatrist in the NHS, established and ran a dedicated ADHD service from 2009-2016.

Approach: Conducts comprehensive assessments, considering co-occurring conditions and underlying neurodiversity. Develops personalised treatment plans based on the child's individual needs. Prioritises the best interests and well-being of the child while ensuring support for the family.

Dr Stuart d’Arch Smith

General Adult Consultant Psychiatrist

MBBS, MRCPsych

Specialty Areas: Adult ADHD, Psychotherapy, Psychiatric Medications, Neurodiversity

Experience: Extensive experience working across multiple NHS community mental health clinics and inpatient wards. Led the establishment of a neurodiversity clinic within a CMHT, integrating occupational therapy and peer-support elements. Expertise in conducting comprehensive assessments for adult ADHD.

Approach: A strong focus on combining psychotherapy approaches with a clear understanding of the pharmacology of psychiatric medications. Passionate advocate for ecologically sustainable healthcare, striving to make healthcare services more environmentally conscious.

Dr. Stephanie Redpath

Consultant Psychiatrist - Child

MBBS, BSc (Hons), MRCPsych, PgDip, BUPA Registered

Specialty Areas: ADHD, Autism, Anxiety and Mood disorders, Mental Health

Experience: Over 11 years as a consultant psychiatrist in the NHS, psychiatry training done in Northern Ireland.

Approach: Provides thorough and holistic assessments, considering co-occurring conditions and developing comprehensive treatment plans.

Dr. Rebecca McLaren

Consultant Psychiatrist - Child

MBBS, BSc (Hons), MRCPsych, PgDip, BUPA Registered

Specialty Areas: ADHD, Autism, Gender-Identity Development, Gender Dysphoria, Anxiety and Mood disorders, Eating disorders, BDD, Psychosis, 

Experience: Over 16 years as a consultant psychiatrist in the NHS, established, doctor training done at the Maudsley and Royal London Medical School.

Approach: Draws on a wide range of therapeutic approaches and has a Postgraduate Diploma in CBT from the Institute of Psychiatry.

Dr Mohammed Ashir

CCT in General Adult and Old Age Psychiatry

MBBS, MRCPsych

Specialty Areas: Adult ADHD, Schizophrenia, Bipolar Disorder, Depression, Anxiety Disorders, OCD, PTSD, Personality Disorders, Perinatal Mental Illness

Experience: Over 20 years of clinical practice across the NHS, trained through the prestigious Royal London Hospital programme. Extensive experience in a wide range of settings, including acute inpatient wards, community mental health teams, psychiatric intensive care units, and specialist rehabilitation services. Expertise in the assessment and treatment of complex and severe mental health conditions.

Approach: Committed to patient-centred care with a focus on collaborative formulation, considering each individual's difficulties within the context of their personal, social, family, and occupational life. Specialised in adult ADHD, with a passion for improving diagnostic pathways, reducing stigma, and addressing the emotional, cognitive, and functional impacts of ADHD. Provides evidence-based, compassionate, and person-centred care.

Additional Info: Fluent in English and Arabic, allowing for support of a diverse patient population. Well-respected for his clinical leadership, collaborative style, and dedication to improving mental health outcomes. Practices in both the NHS (Sussex) and the private sector.