Our Clinical Experts
Our global team of psychologists has been built in order to provide a best in class service. Our team use their specialist knowledge, professionalism and communication skills to demonstrate consistent and reliable outcomes.
Dr Gary BellConsultant Psychiatrist
Dr Dominic de SouzaConsultant Psychiatrist
Dr Pardeep GrewalConsultant Psychiatrist
Dr Philip HopleyConsultant Psychiatrist
Dr Antonio MetastasioConsultant Psychiatrist
Dr Filippo PassettiConsultant Psychiatrist
Dr Tim RogersConsultant Psychiatrist
Dr Matthew SawaConsultant Psychiatrist
Dr Sylvia TangConsultant Psychiatrist
Dr Sandeep Singh-DernevikConsultant Psychiatrist
Dr Monica RamirezConsultant Psychiatrist
Dr Gary Bell
Gary is an experienced Consultant Psychiatrist and Executive Coach. He read Oriental Studies followed by Medicine at the University of Queensland. He came to the UK to specialise in psychiatry. He became a Member of the Royal College of Psychiatrists in 1985 and a Fellow in 2000.
His main areas of clinical interest are perinatal mental health, complex anxiety and depressive disorders and ADHD and co-existing physical ill health such as chronic pain and cancer. He is currently the Mental Health Lead for St Luke’s Healthcare for the Clergy. He was previously a Lecturer at UCH and a Senior Lecturer at St Bartholomew’s Hospital Medical Schools and an Examiner for the University of London and the Royal College of Psychiatrists. He has published widely in the fields of medical education and liaison psychiatry.
His work as an Executive Coach draws upon years of clinical experience but focuses on helping individuals identify a greater sense of purpose within and find the motivation to implement the necessary changes in their life to achieve this.
Away from medicine, Gary enjoys rugby (as a spectator!), music, including relearning the piano and spending time with family and friends.
Dr Dominic de Souza
Dr Dominic de Souza qualified from Leeds University, trained in Melbourne, Australia and London and has been a Consultant Psychiatrist since 2007, working across both the NHS and private sector. As a Royal College examiner and tutor, he is involved in teaching and training of junior doctors and medical students. He also advises health insurance providers.
Dominic takes a recovery-orientated and holistic approach to assessment and treatment of adults with mental health problems. His interests include mood and anxiety disorders, psychosis, trauma, personality disorders, learning disability and ADHD. His additional forensic and legal training provides further expertise in preparing medicolegal reports ranging from criminal cases to employment/occupational matters.
Outside of work, Dominic enjoys playing and watching sports with his kids, reading and going to music concerts/festivals.
Dr Pardeep Grewal
Dr Pardeep Grewal is a medical doctor and consultant psychiatrist. He studied medicine at St Bartholomew’s and The Royal London School of Medicine (MBBS), neuroscience at University College London (BSc) and addictions at Kings College London (MSc). He is a fellow of the Royal College of Psychiatrists (FRCPsych).
He has been a leader of several NHS services in London for more than 10 years. He has delivered a Saturday clinic at Cognacity for the past two of these. His areas of interest are general, addiction and occupational psychiatry. He has particular clinical expertise in treating alcohol problems, drug addiction and co-existing mental health conditions.
His research interests include treatment of novel psychoactive compounds. He is a very experienced expert witness in court and employment cases. He works with the Financial Services Authority, General Dental Council and General Pharmaceutical Council. He is a Specialist Advisor for the Care Quality Commission. He teaches at UCL Medical School and lectures nationally.
When not working he spends his time cycling, swimming and reading. He has endured the pleasure and pain of supporting Arsenal FC for more than 25 years.
Dr Philip Hopley
Dr Phil Hopley is a Medical Doctor and Consultant Psychiatrist. After 19 years working with the NHS, he founded Cognacity and is now Managing Director.
Phil’s training in forensic, general and sport psychiatry combined with a career playing Premiership rugby enabled him to develop his passion for the mental health of elite performance in sport and business. In recent years Phil has worked as the mental health advisor to a number of blue chip organisations and sport bodies guiding mental health strategy development and providing coaching / crisis support.
In his downtime, mindful dog walking, watching sport, playing golf and trying to keep up with the next generation of Hopleys helps to keep him balanced.
Dr Antonio Metastasio
Dr Antonio Metastasio is a Medical Doctor and a Consultant Psychiatrist. Dr Metastasio has a significant experience as psychiatrist both in the NHS and in the independent sector.
Dr Metastasio is a specialist in General Adult and Addiction Psychiatry, he has also trained in Genomic Medicine. He has also a special interest in emerging treatments and in personalised medicine. Dr Metastasio has been also acting as advisor in Personalised medicine start ups and also has been involved in cutting edge research and clinical trials.
In his spare time Antonio enjoys reading, watching films, cooking and also playing with his two children.
Dr Filippo Passetti
After studying medicine in Florence (Italy), Filippo Passetti went to Cambridge to study towards a PhD in Experimental Psychology. He then trained in clinical psychiatry in Cambridge and London, including lectureships at the Royal Free & UCL and at St. George’s Medical Schools. He worked as consultant psychiatrist at Camden & Islington NHS Foundation Trust and at the Cambridge community alcohol services before starting in private practice. His main academic interests have been in the neuropsychological changes associated with addictive disorders and the neuropsychological/ functional MRI predictors of clinical outcome in addiction treatment.
Since joining Cognacity, Filippo has become increasingly interested in resilience and stress-related disorders, particularly in the context of parental separation and divorce. At Cognacity, Filippo leads on the development of the addiction treatment services, including the residential gambling treatment services based at Leon House in Manchester.
In his mid-life, Filippo has taken up kitesurfing and anything resembling it (skateboarding, snowboarding and sliding on slippery floors).
Dr Tim Rogers
Dr. Rogers is a medical doctor and consultant psychiatrist to athletes in high performance sport and performers in elite dance. He regularly consults across a wide variety of sports, including Premier League football, Premiership Rugby and those in the Olympic and Paralympic systems.
Dr. Rogers is a specialist member of the Sport Resolutions’ National Anti Doping Panel. He is on the executive of the Royal College of Psychiatrists’ Sport and Exercise Special Interest Group #SEPSIG. Dr. Rogers is one of a very small number of psychiatrists with a dual qualification in applied sport and exercise psychology. He is certified by the International Society for Sports Psychiatry.
Dr. Rogers is often asked to work both as an expert witness and also to teach, coach and speak about the lessons of high performance for business. ‘Corporate athletes’ can often benefit from the lessons of elite sport in performing best at work.
Dr. Rogers is also Clinical Director for Big White Wall, a piece of digital technology that creates a community of people who support each other and confide anonymously in a safe space 24/7.
When not working Dr. Rogers likes to plan holidays!: cold or warm weather; his own or anyone else’s!
Dr Matthew Sawa
Dr Matthew Sawa is a Medical Doctor and a Consultant Psychiatrist. He has extensive experience in Psychiatry both in the NHS and Independently. He became a Member of the Royal College of Psychiatrists in 2006. He then completed his higher training in General Adult Psychiatry in in 2010, by being awarded a dual Certificate of Completion of Training in General Adult and Rehabilitation Psychiatry. Matthew was then awarded with Distinction a Master Degree in Healthcare Education and Clinical Leadership by Kingston University, London. He acted as a Clinical Advisor for the Royal Pharmaceutical Council from 2012 to 2015. He has led various audits, research and quality improvement activities since 2002.
Dr Sawa is passionate about re-integrating adults back into a fulfilling and meaningful life. He believes that effective management of mental illness commences with careful listening and eliciting a comprehensive history, including relationship with parents and early childhood experiences, current circumstances, habits, preferences, diet and future aims and objectives. Dr Sawa’s dual training in General Psychiatry and Rehabilitation Psychiatry enables him to formulate comprehensive treatment plans in partnership with the clients.
Matthew maintains careful work life balance, by spending meaningful time with his wife and three children. He enjoys listening to a wide range of music genres, cycling, swimming, cooking and reading.
Dr Sylvia Tang
Dr Sylvia Tang graduated from The Royal London Medical School in 1992 with a Bachelor of Medicine and Bachelor of Surgery (MBBS) degree. She completed her specialist training at the Royal Free Hospital and other north London Hospitals, becoming a member of the Royal College of Psychiatrists in 1997 (MRCPsych) and later became a Fellow of the Royal College of Psychiatrists (FRCPsych). She started her first Consultant post at Camden and Islington NHS Foundation Trust in 2001 where she also became Medical Director in 2006 and Deputy Chief Executive in 2012. From 2001-2014 she worked in the community in Archway, inpatient ward, acute assessment unit and crisis home treatment team. Dr Sylvia Tang joined Priory Group as Group Medical Director in 2014 and became Chief Executive of Priory Healthcare in December 2016. Dr Sylvia Tang then left Priory Group in 2019 to pursue other opportunities. She has also sat on varity of committees including the NHS England London Clinical Senate Council as one of the 11 clinical experts to review evidence for service reconfiguration in London, NHSE National Mental Health Payment Steering Group and London Mental Health Strategic Clinical Network.
Dr Sandeep Singh-Dernevik
Dr Sandeep Singh-Dernevik is a Consultant Psychiatrist. In 2004 she started the Guys, Kings and St Thomas’ Psychiatric Training.
She completed her higher specialist training in Forensic Psychiatry in the North West, and she is on the Specialist register. She has also contributed to the Safer Care for Patients with Personality Disorder as part of the National Confidential Inquiry into Suicide and Safety in mental health.
Dr Singh-Dernevik has worked in forensic, general adult, liaison and perinatal psychiatry. She is experienced in the assessment and treatment of mental health conditions including trauma, personality, anxiety disorders, depression, psychosis and obsessive compulsive disorder (OCD).
She is committed to holistic mental wellness, having undertaken studies in Mind Body Medicine at Harvard University. Further studying Ayurveda at the University of Middlesex and the National Institute of Ayurveda Jaipur India, she is also a yoga and meditation teacher.
She uses an overarching holistic approach to her care using her knowledge of psychiatry and complimentary mental wellness techniques to give fully integrated and compassionate treatment.
Dr Monica Ramirez
Dr Ramirez trained as a general psychiatrist in Hospital de La Princesa, Spain.
In the NHS Dr Ramirez works as a the C&A consultant psychiatrist
in the Early Intervention in Psychosis Team and is the Lead of the
Emotional Disorders Team in her CAMHS service.
Dr Ramirez has a bio-psycho-social approach to Mental Health.
This means she sees mental health problems emerging from a
combination of factors including biological (e.g. genetics) psychological, family and environmental factors (e.g school, community).
Dr Ramirez endeavours to involve both the family and the child/
young person in the initial assessment and should it be helpful
(e.g. ADHD assessment) obtain school feedback in order to undertake a thorough assessment.
Dr Ramirez covers all areas of child psychiatry.
She also has particular expertise in depression/anxiety, ADHD and
She has extensive experience in using medication to treat mental
However, she also explores other options, including psycho-education, individual talking therapy, parenting interventions, family therapy
(among others) before considering starting a new medication.
Dr Ramirez endeavours to empower her patients to be part of the
decision-making process regarding the best medication and treatment plan, by discussing the various options including different types
of psychological therapies and any potential side effects of the medication.
She consults in English and Spanish.
Psychologists and Psychotherapists
Gary BloomClinical Psychotherapist
Dr Mark DonatiCounselling Psychologist
Neelam DosanjhClinical Psychologist
Samantha FaragCounselling Psychologist
Dr Huw GoodwinClinical Psychologist
Deborah KinseyCBT Therapist
Dr Kathryn KissellCounselling Psychologist
Dr Marisa LangClinical Psychologist
Ranjit MannCounselling Psychologist
Dr Guy MossClinical Psychologist
Dr Cinzia PezzolesiClinical Psychologist
Dr Matthew StiffCounselling Psychologist
Dr Jo WoodCounselling Psychologist
Gary Bloom is a clinical psychotherapist working from our Harley Street clinic.
He holds a postgraduate diploma in Psychotherapy and a BA honours from the University of Wales.
His specialities include treating elite sportsmen and women and he presents a radio show on this topic, “on the sporting couch“ on talkSPORT.
He treats conditions like depression, anxiety, addictive behaviours, relationship issues and also specialises in teenagers who are finding it hard to find a way in the world.
He is the psychotherapist at a football league club.
Gary’s first book about his work as a clinical sports psychotherapist ‘Keeping your Head in the Game’ was published by Penguin Books in Feb 2021
Dr Mark Donati
Dr Mark Donati is an HCPC registered counselling psychologist, approved supervisor and associate fellow of the BPS, senior fellow of the Higher Education Academy and BPC accredited practitioner of Dynamic Interpersonal Therapy (DIT). He gained first-class bachelors and master’s degrees in psychology before going on to complete a PhD and clinical training.
Before joining Cognacity, Mark spent over 10 years working in psychological services in the NHS, including as lead counsellor for the Brent IAPT Counselling Service and team leader for the North Lambeth Talking Therapies Service. He specialises in providing short and long-term psychodynamic and integrative therapies, tailored to the individual. His academic interests are in the areas of professional training, reflective practice and supervising doctoral research.
In addition to his clinical work, Mark is an experienced trainer and consultant, and is currently Head of Doctoral Training at the University of Roehampton, where he enjoys educating and inspiring future generations of counselling psychologists.
Neelam Dosanjh is a Chartered Consultant Clinical Psychologist and an Organisational Consultant. She has worked in the NHS for over 25 years managing and leading psychological services. A key aspect of her work is to conduct a full assessment to collaborate with the patient on the best treatment approach.
She provides brief and longer term therapy using a wide range of approaches for her clinical work which include psychodynamic therapy, Dynamic Interpersonal Therapy (DIT) which is NICE recommended for depression and anxiety, Interpersonal Therapy (IPT) another NICE recommended short term therapy for depression, CBT and Mentalisation Based Treatment (MBT) for personality difficulties.
Neelam provides clinical services for a range of presentations with an underlying key focus on relational experiences and attachment theory. Clinical services include relationship difficulties, depression and anxiety, addictions, personality difficulties , eating disorders, post -traumatic stress disorder, sleep disorders, stress and work related stress
She is an accredited supervisor and trainer with the Anna Freud Centre.
She is professionally accredited by the British Psychological Society (BPS), BPC and the Health Professionals Council.
Her passion includes supporting the NHS and social justice.
Samantha is a Chartered Counselling Psychologist with over 15 years of experience in private practice and in the NHS where she set up and managed a Talking Therapies service for several years. She is a Practitioner Psychologist (HCPC); an Accredited Cognitive Behavioural Therapist (BABCP) and an Associate Fellow of The British Psychological Society. Samantha also established and directs the MSc. in Cognitive Behavioural Psychotherapy at Goldsmiths, University of London. Her specialisms includes adult mental health, and personal and professional development within high performance settings including corporations and elite sports.
In her spare time, she enjoys spending time with her family and friends, and is always ready to try something new.
Dr Huw Goodwin
Dr Huw Goodwin is a Clinical Psychologist and is the Mental Health Lead at the Royal Ballet School. He has previously worked in the NHS in a wide range of mental health settings and has combined this with extensive experience in the world of sport performance.
Further to his clinical expertise, Huw has provided education, advice and training to professional (and Olympic) athletes, coaches, sports physicians, physiotherapists, nutritionists, and other support personnel; along with teaching at university and college environments.
To compliment the above work, Huw has been a professional sports coach for many years and has most recently been the Head Coach of an U19s Academy programme at a professional rugby league club.
Deborah is a CBT Therapist who worked for Cognacity within the admin team for eight years whilst taking a BSc (Hons) Psychology with The Open University. Following that, she trained in Cognitive Behaviour Therapy with SDS Seminars in advance of an MSc in CBT at Goldsmiths University London. This was a unique training course as it incorporated third wave psychological therapies such as Compassion Focused Therapy, Acceptance and Commitment Therapy and Mindfulness. She now works within the NHS as well as at Cognacity.
Deborah having originally trained as a dancer, has a particular interest in dancer’s mental health and wellbeing which has been and will continue to be the focus of her academic research.
In her spare time, she loves going to the theatre and enjoys spending time with her family which includes two Maine Coon kittens!
Dr Kathryn Kissell
Kathryn completed her clinical doctorate in Counselling Psychology at University of Roehampton. She also holds a BA(Hons) and MA(Oxon) in Experimental Psychology from Oxford University. Kathryn is registered with the Health and Care Professions Council and British Psychological Society.
Kathryn has extensive experience working in the NHS, mental health charity, private sector and workplace settings. She employs an integrative therapeutic style drawing on humanistic, psychodynamic and cognitive-behavioural modalities as well as systemic therapeutic approaches. Kathryn works with individuals experiencing a range of difficulties including anxiety disorders, depression, stress, work and relationship difficulties, eating disorders, bereavement and loss.
In addition, Kathryn is a Bowen Systems coach and consultant and works as a visiting research fellow & MBA course lecturer at London South Bank University Business School. Kathryn’s corporate work seeks to mature leadership, foster greater employee resilience and well-being as well as enhance organisational functioning.
Outside work, Kathryn loves nothing better than relaxing with her family, growing edible delights on her allotment and eating Indian food.
Dr Marisa Lang
Marisa is a HCPC registered Clinical Psychologist experienced in Adult Mental Health and Corporate Well-being Programmes. She obtained her clinical doctorate at University College London and specialised in Cognitive-Behavioural approaches at Oxford University. Drawing on evidence-based practice, her work is characterised by an integrative, client-centred and collaborative approach.
Ranjit is a Chartered Counselling Psychologist with an excess of 15 years’ experience, which has encompassed a charity-funded women’s centre, the Independent sector and the NHS, in addition to extensive experience in private practice. Within the NHS, Ranjit has previously held core roles in setting up both a Community Adult Eating Disorder Service, and a Mental Health and Well-Being service within the Occupational Health Department. Ranjit is also a guest lecturer on a London University’s Master’s Degree Course. Ranjit is registered with the Health and Care Professions Council and British Psychological Society and is an Associate Fellow of The British Psychological Society.
Drawing on evidence-based practice and practice-based evidence, her work is characterised by an integrative, collaborative approach, with an underlying focus on relational experiences and attachment theory. Her specialisms include; EMDR, CBT, DBT, post-graduate diploma in Systemic Therapy, Solution Focused Therapy, MANTRA and Mindfulness. Ranjit works with a wide spectrum of clinical and complex psychological conditions such as the bi-polar spectrum, complex trauma, PTSD, addictions, weight management, pain management, mood disorders and anxiety disorders, as well as in the treatment of eating disorders complicated by symptoms of Borderline Personality Disorder, Severe and enduring mental health difficulties and medically unexplained symptoms. she works with adults, adolescents and children presenting with complex difficulties.
Ranjit enjoys going to exhibitions, theatre, socialising and taking her own advice of trying to spend time at home having a duvet holiday on a Sunday once a month.
Dr Guy Moss
Dr Guy Moss qualified as a Clinical Psychologist in the year 2000 and worked in a variety of in-patient and out-patient NHS hospital settings prior to joining Cognacity in 2008. In his clinical practice, Guy thrives on variety and specialises in Cognitive Behaviour Therapy (CBT) & Mindfulness for treating Depression and Anxiety Disorders, Alcohol and Behavioural Addictions, Relationship Unhappiness (and Couple Therapy), Bereavement, Trauma, Panic, OCD, ADHD, Impulse Control (Anger/Eating) and Asperger’s Syndrome.
Guy is an Associate Fellow with the BPS and is registered with HCPC and EuroPsy. Guy is also a Chartered Neuropsychologist and provides expert witness reports in fitness to work, occupational stress and personal injury.
Dr Cinzia Pezzolesi
Dr Cinzia Pezzolesi is a Chartered Clinical Psychologist and a qualified Mindfulness Teacher. She has a post graduate Diploma in Cognitive Behaviour Therapy from Oxford University. Cinzia is currently acting as the Clinical Director of the Mindfulness Project and is collaborating both with the clinical and corporate teams at Cognacity.
Cinzia has started her career as researcher at Hertfordshire University where she gained a PhD in the topic of “human factors and patient safety’. Before moving the UK, Cinzia was a professional volleyball player for several years and she still cultivates a passion for sports and healthy eating.
Dr Matthew Stiff
Matthew is a chartered counselling psychologist with experience of working within the NHS, charitable and private practice, including eating disorders, addiction, bereavement and general. He has assisted on training in psychometrics at City, University of London, as well as delivering talks on mental health in the workplace to senior managers in leading companies. Having previously worked at board level in the public and private sectors he has an understanding of the inherent pressures of corporate environments. He is registered with the Health and Care Professions Council, the British Psychological Society and the British Association of Counsellors and Psychotherapists.
Matthew works with a wide range of mental health difficulties, including anxiety, depression, addictions (drugs, alcohol, gambling and other addictive behaviours), autism, bereavement, eating disorders, complex trauma, PTSD, ADHD, OCD and learning difficulties. He brings to his work positivity and warmth, working with his clients to understand their problems to develop a solution-focussed approach. He uses his knowledge of person-centred, psychodynamic and cognitive-behavioural theory to adopt an integrative, collaborative approach to his work. His specialisms include CBT, EMDR, DBT, ACT, Solution-Focussed Therapy, Mindfulness and Person-Centred Therapy. Matthew has played a key role in helping to develop Cognacity’s residential addictions workshops in Manchester and runs a regular evening addictions group at Cognacity’s Harley Street clinic.
As a former archaeologist Matthew enjoys travel in the company of friends and family, experiencing the historic environment, throwing in a bit of local food and culture, along with not quite enough exercise.
Dr Jo Wood
Jo is a Consultant Counselling Psychologist specialising in mental health and sports and exercise psychology. Jo has extensive clinical experience after spending 17 years working in the NHS in both primary and secondary care, working with adults, young people, couples and families. Previous roles have included providing clinical leadership and supervision to a wide range of mental health professionals. Following her initial psychology training at City University, Jo completed further post-graduate CBT training at Oxford and is an accredited CBT and Schema therapist, as well as a Consultant EMDR practitioner. She also has had training in Mindfulness and ACT.
Jo has experience of working with a wide range of clients, including amongst others, those from the legal profession, banking, IT, the media and sport. Jo is able to work with a wide range of issues and specialises in trauma, anxiety disorders, adjustment/transitions, complex presentations, eating disorders, personality disorders and performance. She provides both short and long-term therapy.
Dually accredited as a Sports and Exercise Psychologist, Jo has worked with professional/elite athletes from a range of sports including rugby, cricket, athletics, boxing, swimming and gymnastics. Jo also has experience of working with younger athletes in academy settings and GB development squads. As part of her work, Jo has helped athletes with performance anxiety issues, sports trauma, adjustment to injury and retirement, as well as athlete mental health.
In her spare time, Jo enjoys being outdoors, spending time with her family (including two dogs), powerlifting and completing a PhD focusing on identity leadership.
Where to find us
Cognacity is a world leading provider of private mental health services. With headquarters in Central London on Harley Street and offices in the City, Canary Wharf, Chelsea and the Thames Valley, we are supported by our large national and international network of over one hundred experienced clinicians.
View our Experts from other fields
Cognacity's multidisciplinary team of psychiatrists and psychologists specialise in a range of different fields, click below to see a different or more specific list of experts.