Bill Sullivan. Bsc (Hons), PgDip, Adv Dip. Cognitive Behavioural Psychotherapist

Bill Sullivan. Bsc (Hons), PgDip, Adv Dip. Cognitive Behavioural Psychotherapist



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About me

I am a senior, fully qualified and accredited Cognitive Behavioural Psychotherapist based in Bushey on the North West London / Hertfordshire border. I offer a warm, empathic, confidential and non-judgemental environment in which we can work together. This will enable you to achieve positive change and to gain the confidence and skills to cope effectively with life’s challenges as they arise, both now and in the future.

I have many years experience working with clients aged from 16 to 96 from all walks of life. I offer treatment to individuals who may have mild or severe difficulties with any of the conditions listed below, as well as to couples who may be experiencing difficulties in their relationship.

I have worked in the NHS since the 1990’s during which I undertook dual training in both physical and mental health settings. This enabled me to gain in-depth experience of working with the full range of psychological and psychiatric conditions in both hospital and out-patient settings, as well as experience of physical conditions whilst working in a variety of medical settings such as neurology, rheumatology and medical-surgery.

My principal therapeutic approach is Cognitive Behavioural Therapy (CBT), although where appropriate I also integrate other approaches such as Mindfulness, Solution Focused Therapy, and Occupational Therapy. Additionally, I use CBT Plus (CBT+) an approach which is showing increasingly positive results, this combines CBT, DBT (Dialectical Behaviour Therapy), ACT (Acceptance & Commitment Therapy) and CFT (Compassion Focussed Therapy).I have extensive experience in assessing and treating the full range of psychological conditions including the following:

  • Depression
  • Generalised Anxiety Disorder
  • Social Anxiety (including shyness and blushing)
  • Stress
  • Obsessive Compulsive Disorder
  • Post Traumatic Stress Disorder
  • Performance anxiety (including exam stress, public speaking and interviews)
  • Low Self-Esteem / low confidence
  • Interpersonal Difficulties
  • Specific Phobias
  • Insomnia
  • Addiction
  • Work Stress
  • Health Anxiety (Hypochondriasis)
  • Physical illness, long term conditions and disability
  • Panic disorder.
  • Agoraphobia
  • Family issues
  • Relationship issues
  • Separation and divorce
  • Affairs and infidelity
  • Sexuality issues
  • Assertiveness
  • Trauma
  • Work related stress
  • Anger
  • Adjustment Disorder
  • Mood Instability
  • Couples Therapy: This type of couple therapy (BCT) is proving increasingly effective, with benefits being seen in both the mood of the individuals and the strength of their relationship.

Training, qualifications & experience

  • Fully accredited member of BABCP (British Association of Behavioural & Cognitive Psychotherapies).
  • HCPC (Health & Care Professions Council) registered.
  • Fully insured as Registered Cognitive Behavioural Psychotherapist.
  • Post Graduate Diploma in Cognitive Behavioural Psychotherapy. Royal Holloway, University of London.
  • Post Graduate Diploma in Cognitive Behavioural Therapy (IAPT). Royal Holloway, University of London.
  • Post Qualification Certificate in Behavioural Couples Therapy, Royal Holloway, University of London.
  • Advanced Diploma in Dynamics of Mental Health Practice. Tavistock & Middlesex University.
  • Bsc (Hons) Occupational Therapy. Brunel University.

Member organisations

Registered / Accredited



Individual Therapy - £70 per session.

Couples Therapy - £95 per session.

Further information

It is completely natural to have some initial concerns before beginning a course of therapy. A first session - or assessment session - is an opportunity for you to decide if you think I can help you with your particular problem(s). It is important that you feel comfortable and happy to work with your therapist and there is absolutely no obligation to commit to any further sessions after our first meeting.

If you have any questions, are unsure about beginning therapy or you would like to book an appointment, please call or email in total confidence.

Based in Bushey, I see clients from Watford, Radlett, Stanmore, Harrow, Rickmansworth, Chorleywood, St Albans, Kings Langley, Abbotts Langley, Pinner and from across Hertfordshire and North West London.

Maps & Directions

Bushey, WD23

Type of session

Online counselling: No
Telephone counselling: Yes
Face to face counselling: Yes

Practical details

Sign language: No
Other languages: None

Types of client

Young people
Older adults