Leah

Dr Leah Wallach, PhD

Registered Clinical Psychologist

“Dual citizen (US UK) psychologist with sound grounding in basic psychological science and training in a variety of therapeutic approaches”

About Me

As a Registered Clinical Psychologist with a PhD, I offer comprehensive, evidence-based support, deeply rooted in psychological science. Drawing from a variety of therapeutic approaches, I help you explore challenges and tailor our sessions to your unique needs. We can develop practical strategies together, building lasting resilience. My broad, well-rounded training and dual UK/US perspective make me well-suited to guide you. I support individuals seeking flexible, informed help, whatever their path.

Approach

Therapy here is collaborative and tailored, moving from careful assessment to practical steps that build steady momentum between sessions. I offer appointments online to fit different rhythms of life. Sessions balance thoughtful exploration with focused skill practice, using assessment-informed targets and measurable goals so progress feels concrete and relevant to your concerns. This way of working tends to suit adults seeking clear, science-informed collaboration and flexible access.
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Basic Information

In-person & Online

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Services

Services Offered:

  • Psych & Diagnostic Assessment

    Formal psychological testing to identify conditions, understand cognitive and emotional functioning, and guide treatment planning.

  • Consultation

    An initial meeting with a therapist to discuss concerns, ask questions, and determine whether they are the right fit.

  • Individual Therapy

    One-on-one therapy sessions between a client and a therapist, focused on that person's specific concerns and goals.

    Learn more about Individual Therapy

Works With:

  • Adults

Area of Expertise

Scope of Practice:

  • Life Transitions

    Major life changes, such as relocation, retirement, parenthood, or career shifts, that disrupt routine and require psychological adjustment.

    Learn more about Life Transitions
  • Anxiety

    Persistent worry, nervousness, or fear that is disproportionate to the situation and interferes with daily functioning.

    Learn more about Anxiety
  • Behaviour or Conduct Issues

    Persistent patterns of defiant, aggressive, or rule-breaking behaviour in children or adolescents that significantly disrupt home, school, or social life.

  • Mood Disorder

    A category of mental health conditions, including depression and bipolar disorder, in which a person's emotional state is significantly and persistently disrupted.

    Learn more about Mood Disorder
  • PTSD

    Post-Traumatic Stress Disorder, a condition that develops after a traumatic event, causing flashbacks, nightmares, hypervigilance, and emotional numbness.

    Learn more about PTSD
  • Relationship Issues

    Difficulties in romantic relationships, including communication problems, trust breakdowns, conflict patterns, or uncertainty about the relationship's future.

    Learn more about Relationship Issues
  • Stress / Burnout

    The body and mind's response to prolonged or excessive demands. When sustained, it can lead to emotional exhaustion, detachment, and reduced functioning (burnout).

    Learn more about Stress / Burnout
  • Trauma

    The lasting psychological impact of deeply distressing events, such as violence, abuse, accidents, or disasters, that overwhelm a person's ability to cope.

    Learn more about Trauma

Professional Title:

  • Registered Clinical Psychologist

    A psychologist registered with a regulatory body to independently assess, diagnose, and treat mental health conditions.

Credentials

Registrations

Health and Care Professions Council (HCPC)

Clinical Psychologist

Registration: PYL21995

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NY State Education Department - Office of the Professions (Psychology) (NYSED-PSY)

Clinical Psychologist

Registration: 013259

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University of Hertfordshire/British Psychological Society

Chartered Psychologist

Qualifications

Doctor of Philosophy (PhD)

APA Accredited Program, SUNY Buffalo

Year: 1996

Memberships

British Psychological Society (BPS)

Fellow

Membership: 040238

American Psychological Association (APA)

Full Member

Membership: 70995823

British Association for Behavioural and Cognitive Psychotherapies (BABCP)

Full Member

Membership: 0040576-

British Association for Behavioural and Cognitive Psychotherapies (BABCP)

Associate Member

Membership: 0040576-

Service Areas

Dr. Leah Wallach

In-person & Online

London, Middlesex

United Kingdom

Twickenham, United Kingdom