Dr Himanshu Tyagi

Consultant Neuropsychiatrist · Queen Square, London

Dr Himanshu Tyagi

MBBS  ·  MRCPsych  ·  FRCPsych  ·  PhD

Neuropsychiatrist & Medical Psychotherapist in Cognitive Behavioural Therapy

A specialist in complex obsessive-compulsive disorder

With deep training and experience across all three treatment modalities — medication, exposure-based cognitive behavioural therapy, and neuroscience-based treatments — and active research in each.

About

A career devoted to obsessive-compulsive and related disorders

Dr Himanshu Tyagi is a consultant neuropsychiatrist at the National Hospital for Neurology and Neurosurgery (NHNN), Queen Square, specialising in the treatment of complex obsessive-compulsive disorder (OCD) and related conditions, including Tourette syndrome, body dysmorphic disorder and neuropsychiatric comorbidities. He is trained and experienced in all three treatment modalities for OCD — medication, exposure-based cognitive behavioural therapy, and neuroscience-based treatments such as deep brain stimulation — and actively researches each. He holds a Certificate of Completion of Training in medical psychotherapy (CBT) and is on the GMC specialist register.

He runs the specialist stream of the national adult Tourette syndrome service for patients with a dual diagnosis of Tourette syndrome and OCD, with a weekly outpatient clinic at Queen Square accepting direct referrals from GPs and specialists anywhere in the country. He also provides expert neuropsychiatric input as an inpatient consultant within an NHS England-commissioned level 1 neurorehabilitation service. Until November 2025 he led the nationally commissioned inpatient specialist service for OCD at Priory Hospital North London.

Before joining UCLH at Queen Square in 2016, he coordinated the MRC-UCL randomised controlled trial of deep brain stimulation for severe, treatment-refractory OCD (2012–2016) at the UCL Institute of Neurology. He completed basic specialist training at St Mary's Hospital, London, and advanced training at the National Service for OCD & BDD at Springfield University Hospital, where his work was recognised with a national award from the Royal College of Psychiatrists in 2012.

He is a co-founder and current vice-chair of the Royal College of Psychiatrists' faculty network for Obsessive-Compulsive and Related Disorders (OCARD), and runs a special interest group for psychiatry registrars in neuropsychiatry. A prominent voice in public understanding of OCD — noting that two out of three people with the condition remain undiagnosed — he led the inaugural OCD Neuroscience Awareness Week at the UCL Queen Square Institute of Neurology in October 2025. An early advocate of technology and AI in healthcare, he has published several books for medical students and co-founded RxPG, an international educational network for medical students. He consults in English, Hindi and Punjabi.

1999MB BS, University of Delhi
2006MRCPsych, Royal College of Psychiatrists, London
2012CCT in Medical Psychotherapy · Higher Psychiatric Trainee of the Year, RCPsych
2012–16Coordinated the MRC-UCL randomised controlled trial of DBS for severe, treatment-refractory OCD
2017Alwyn Lishman Prize, British Neuropsychiatric Association
2021Fellow of the Royal College of Psychiatrists
2022PhD in Neuroscience, University College London

Conditions Treated

Specialist assessment and treatment, ages thirteen and over

  • Obsessive-compulsive disorder (OCD)
  • Tourette syndrome & tic disorders
  • Body dysmorphic disorder (BDD)
  • Health anxiety
  • Generalised anxiety disorder (GAD)
  • Complex phobias
  • Emetophobia (fear of vomiting)
  • Trichotillomania (hair pulling)
  • Depression with comorbid OCD
  • ADHD with neuropsychiatric comorbidity
  • Complex neuropsychiatric presentations
  • Neurorehabilitation psychiatry

Treatments

Three modalities, one specialist — chosen and combined to suit each patient

I. Medication
Specialist pharmacological management of OCD, tics and complex comorbidities, including augmentation strategies for treatment-resistant illness, informed by more than twenty-five years of clinical practice in tertiary settings.
II. Exposure-based cognitive behavioural therapy
Specialist CBT delivered by a medical psychotherapist with a CCT in the modality — exposure and response prevention (ERP) for OCD and related disorders, and habit reversal training for tics, Tourette syndrome and body-focused repetitive behaviours.
III. Neuroscience-based treatments
Assessment and guidance on neuromodulation for severe, treatment-refractory OCD — including deep brain stimulation — drawing on his leadership of the UK's first DBS-for-OCD trial and ongoing research into the brain circuits of OCD.

Private Appointments

Consultations at Queen Square, in person or online

FormatFace-to-face at Queen Square, or video and telephone consultations
Ages13–17, 18–64 and 65+ years
LanguagesEnglish, Hindi, Punjabi
ReferralsGP and specialist referrals, and self-referral enquiries welcome
ScopeOCD & related disorders and complex neuropsychiatric assessments
InsurersBupa (Platinum, fee assured), AXA Health, Vitality, Aviva Health, Healix Health Services, Bupa Global; self-paying patients welcome
New appointment£500
Follow-up appointment£285

Fees are for consultation only and are confirmed in writing before your appointment. Any additional charges — for example for reports, prescriptions or extended correspondence — will be explained in advance. Patients using insurance should check their policy terms, including any excess or shortfall, with their insurer.

To arrange a consultation

Private Secretary — Claire Young
020 8123 0234  ·  secretary@drhimanshutyagi.com

Book Online

Queen Square Private Consulting Rooms · 23 Queen Square, London WC1N 3BG

NHS & Academic Roles

National specialist services at Queen Square and beyond

UCLH · NHNN Queen Square

National Tourette Syndrome & OCD Clinic

Leads the specialist stream for dual-diagnosis Tourette syndrome and OCD within the national adult Tourette service, with a weekly outpatient clinic at the Basil Samuel outpatient department accepting referrals from across the UK.

UCLH · NHNN Queen Square

Neurorehabilitation Unit

Inpatient consultant providing specialist neuropsychiatric input within an NHS England-commissioned level 1 tertiary neurorehabilitation service.

UCL Queen Square Institute of Neurology

Research & Teaching

Honorary Clinical Research Fellow, Department of Clinical and Movement Neurosciences; co-investigator on the Op-TICS trial of DBS in severe Tourette syndrome; supervises MSc placements and a neuropsychiatry special interest group for registrars.

Royal College of Psychiatrists

OCARD Network

Co-founder and current vice-chair of the RCPsych faculty network for Obsessive-Compulsive and Related Disorders (OCARD).

Public Engagement

OCD Neuroscience Awareness Week

Founded and led the inaugural OCD Neuroscience Awareness Week at the UCL Queen Square Institute of Neurology (October 2025), and hosted the national OCD clinicians' summit during OCD Awareness Week 2024.

Selected Publications

Over ninety research outputs and 870+ citations on the neuroscience of OCD

Biological Psychiatry, 2019

A Randomized Trial Directly Comparing Ventral Capsule and Anteromedial Subthalamic Nucleus Stimulation in Obsessive-Compulsive Disorder

Tyagi H, Apergis-Schoute AM, Akram H, Foltynie T, Limousin P, Drummond LM, Fineberg NA, et al.

Nature Neuroscience, 2024

Mapping Dysfunctional Circuits in the Frontal Cortex Using Deep Brain Stimulation

Hollunder B, Ostrem JL, Sahin IA, Rajamani N, Oxenford S, Butenko K, et al. (incl. Tyagi H).

Biological Psychiatry, 2024

Deep Brain Stimulation for Obsessive-Compulsive Disorder: Optimal Stimulation Sites

Meyer GM, Hollunder B, Li N, Butenko K, Dembek TA, Hart L, et al. (incl. Tyagi H).

Nature Medicine, 2022

Deep Brain Stimulation for Obsessive-Compulsive Disorder: A Crisis of Access

Visser-Vandewalle V, Andrade P, Mosley PE, Greenberg BD, Schuurman R, et al. (incl. Tyagi H).

British Journal of Psychiatry, 2026

Cutting Through Stigma: Psychiatry and Neurosurgery Working Together

Zrinzo L, Huys Q, Howard R, et al. (incl. Tyagi H).

Biological Psychiatry: Global Open Science, 2026

The Occipital-Fronto-Limbic Circuit of Body Dysmorphic Disorder: A Systematic Review and Meta-Analysis

Cheng Y, Burrows E, Zrinzo L, et al. (incl. Tyagi H).

Contact

Referrals, appointments and correspondence

Private Practice

Queen Square Private Consulting Rooms

23 Queen Square, London WC1N 3BG
Private Secretary: Claire Young
Tel: 020 8123 0234
secretary@drhimanshutyagi.com
Book online

UCLH Private Healthcare

Private Enquiries

Tel: 020 3448 4260
uclh.private.enquiries@nhs.net

NHS · Tourette/OCD Clinic

National Hospital for Neurology & Neurosurgery

Box 19, Queen Square, London WC1N 3BG
GP & specialist referrals accepted from anywhere in the UK
h.tyagi@nhs.net

NHS · Neurorehabilitation Unit

National Hospital for Neurology & Neurosurgery

Box 113, Queen Square, London WC1N 3BG
Patient enquiries: 020 3448 3094 / 020 3448 3486

Academic

UCL Institute of Neurology

Department of Clinical and Movement Neurosciences
Box 146, Queen Square, London WC1N 3BG
h.tyagi@ucl.ac.uk

Royal College of Psychiatrists

OCARD Network — Vice-Chair

Network for Obsessive-Compulsive and Related Disorders
21 Prescot Street, London E1 8BB

Professional Standards

Registration, fees, confidentiality and how to raise a concern

Registration and regulation
Dr Tyagi is registered with the General Medical Council with a licence to practise (GMC no. 6046794) and is on the specialist register. He practises in accordance with the GMC's Good Medical Practice and holds professional indemnity cover for his private work. Private consultations take place at Queen Square Private Consulting Rooms, operated by UCLH Private Healthcare, part of University College London Hospitals NHS Foundation Trust.
Fees and financial interests
Consultation fees are published on this page and confirmed in writing before any appointment, in line with the Competition and Markets Authority's requirements for private healthcare. Dr Tyagi has no financial interest in any pharmaceutical company, and no pharmaceutical industry payments to declare — this can be verified at Disclosure UK. He does not receive payment for referrals to, or from, any other clinician or service.
Confidentiality and your information
Clinical information is held in confidence and handled in line with the GMC's confidentiality guidance and UK data protection law. With your consent, correspondence is normally shared with your GP so that your care is coordinated. This website itself collects no personal data, sets no cookies and uses no third-party tracking or analytics; online booking is handled separately by Semble, whose own privacy notice applies.
Scope of this website
The information here describes Dr Tyagi's practice and is not a substitute for individual medical advice. A consultation involves a full assessment, and any treatment recommended will be discussed with you — including its benefits, risks and alternatives — so that you can make an informed decision. Reports of research are provided for information; they do not imply that any particular treatment is suitable for you.
Raising a concern
If you are unhappy with any aspect of your care, please raise it with Dr Tyagi or his private secretary in the first instance so that it can be put right. Concerns about care received at Queen Square can also be raised with UCLH Private Healthcare, and any patient may contact the General Medical Council.
In an emergency
This practice does not provide emergency or crisis care. If you or someone else is in immediate danger, call 999 or go to your nearest emergency department. For urgent mental health support call NHS 111 (option 2), or the Samaritans free on 116 123 at any time.