Psychiatrists are medically trained to diagnose & treat mental, emotional & behavioural disorders.

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Private Consultant Psychiatrist

Consultant psychiatrists Dr Humphries and Dr Mirza are available for private psychiatry appointments at our elegant Harley Street rooms in London. He provides a full range of out-patient psychiatric services including assessment and diagnosis, as well as development of treatment plans including medication and psychological therapy. He is GMC-registered and on the Specialist Register. 

Why choose private psychiatry services?

  • GMC-registered consultant psychiatrist with 30 years medical experience
  • First-class service, professional and expert
  • Renowned ADHD specialist
  • Well-appointed London Harley Street rooms in reputable medical house
  • Access to network of health care providers including counselling psychologists 
  • Quick turnaround on medical reports
  • Excellent patient feedback

Dr Stephen Humphries
Private consultant psychiatrist London (ADHD specialist)

Dr Humphries is an experienced and highly respected general psychiatrist whose specialist field is adult ADHD where he has a great deal of experience in the diagnosis and management of the condition - a speciality which is less commonly found amongst UK psychiatrists and has developed a highly regarded practice in the field. Dr Humphries is not a couples or family specialist and prefers to work with individuals. He has helped with many psychiatric conditions including schizophrenia, bipolar disorder, depression, organic problems, anxiety, OCD, personality disorder, eating disorders and relationship issues from an individuals perspective. 

Dr KAH Mirza
Private consultant psychiatrist London (sees adults, children & adolescents)

Dr K.A.H Mirza is a world-renowned psychiatrist with more than 30 years of experience in the assessment and treatment of adults, children and young people with psychiatric disorders and substance misuse. His experience spans four different countries including Ireland, India, Canada and the UK. After qualifying in Medicine in 1982, he worked in General Adult Psychiatry for a decade before specializing in Child and adolescent psychiatry at the Maudsley Hospital, London and University of Cambridge, UK.  

Dr. Mirza has worked at a consultant level over the previous 20 years and held senior academic and clinical positions in major international universities including Cambridge, (UK), Dalhousie University (Canada), and Institute of Psychiatry, Kings College, (London). He retired from the Maudsley Hospital, London recently after 17 years of meritorious service in the NHS and took up the position of a Consultant Psychiatrist at the Priory Hospital, Ticehurst, UK, a specialist inpatient service for people with complex mental health problems.

Dr. Mirza has in-depth experience of a broad spectrum of mental health difficulties including depression, anxiety, trauma, personality difficulties, OCD, phobias, psychosis, including schizophrenia and bipolar disorder, self-harm, sexual health problems, sleep disorders, eating disorders, alcohol and substance misuse, and impact of stress on health and well being. Additionally he also works with couples to address difficulties in relationships. Dr. Mirza has specialist experience and expertise in the assessment and treatment of ADHD in individuals of all ages

Dr. Mirza has written numerous articles, books and chapters on ADHD, substance misuse, PTSD and psychopharmacology. He has presented workshops and symposia at international conferences and is a visiting lecturer at universities in Japan, Ireland and India. He was a member of the Curriculum committee of the Royal College of Psychiatrists, and Faculty of Child and Adolescent psychiatry at the Royal College of Psychiatrists. He held the post of Postgraduate Training Programme director at the Guys Kings and St. Thomas’s Medical school, London.

Dr. Mirza has specialist expertise in the field of medication treatment and was a member of the Drugs and Therapeutic committee at the Maudsley Hospital, which publishes the influential Maudsley Prescribing Guidelines. Dr. Mirza is trained in psychotherapies including Systemic therapy, CBT and third wave psychotherapies and firmly believes in the concept of multidisciplinary working with colleagues from across a number of disciplines including psychologists and psychotherapists.  He is committed to providing the most evidence based treatment to his patients and has developed new forms of treatments for ADHD. 

Membership of organizations

Dr. Mirza is a fellow of the Royal College of psychiatrists, London, the Royal College of physicians and surgeons of Canada and the Royal College of Physicians of Edinburgh, UK.  He is registered with the General Medical Council, London, number: 4256063.

Dr Humphries and Dr Mirza run their private psychiatric clinic in Harley Street, London and are available for appointments at Harley Therapy's rooms. Please note that a copy of the psychiatrist's report will be sent to your GP as standard practice. Requests for repeat prescriptions are available online.

Referrals to counselling psychologists via a private psychiatrist

Dr Humphries & Dr Mirza refer to in-house counselling psychologists at both Harley Street and our other London locations, for a full range of talking therapies including (but not limited to) cognitive behavioural therapy, psychodynamic counselling and existential psychotherapy. They are able to liaise with your therapist in a shared treatment plan.

To make an appointment with or to enquire about the services from our private consultant psychiatrists, please call 0845 474 1724.

Or you may book online, confidentially, using the form below:

Psychiatry Booking Form

Practice Address:
12 Harley Street
London, W1G 9PG

Video: Meet Dr Stephen Humphries - Consultant Psychiatrist

London Psychiatrist Services

Dr Stephen Humphries

 Dr Humphries photo

Dr Kah Mirza




£400 for an initial assessment (includes diagnosis, treatment plan & report).

Dr Humphries is recognised by these insurance providers: BUPA, Cigna, AVIVA, Standard Life, WPA, Pruhealth. Insurance fee is higher.


Areas of Expertise in Psychiatry

  • Anxiety and Panic Disorder
  • Depression
  • Sexual Problems
  • Eating Disorders
  • Trauma / PTSD
  • Phobias and Fears
  • Psychosis
  • Bipolar Disorder
  • Schizophrenia
  • Addictions
  • Personality Disorders
  • Substance Misuse
  • Work/Career Issues
  • Relationship Problems
  • Self-Harm
  • Low Self-Esteem
  • Anger Problems
  • Bereavement
  • Sleep Problems
  • Chronic Fatigue Syndrome
  • Old Age Psychiatry
  • Adolescents (15+)
  • Obsessive-Compulsive Disorder OCD
  • Depersonalisation Disorder DPD
  • Forensic Psychiatry
  • ADHD (Adult) / ADD 
Call us to book or enquire

0845 474 1724

• Line Open Book Online
Opening Hours
Opening Hours

Monday to Friday 7am-10pm
Saturday & Sunday 8am-8pm