Health Psychologist
Expert Witness Services
Specialist psychological assessment of the impact of physical illness, chronic pain, and medical conditions. Our health psychologists provide expert evidence for personal injury, clinical negligence, and disability proceedings.
What Is a Health Psychologist?
A Health Psychologist is a practitioner psychologist who specialises in the biopsychosocial model of health. They focus on how psychological, social, and biological factors interact to influence physical health, illness, and healthcare delivery.
In a medico-legal context, health psychologist expert witnesses are instructed to evaluate the psychological impact of physical illness or injury. They are uniquely qualified to assess health behaviour change, treatment adherence, and the psychological formulation of chronic pain conditions. They assess conditions including:
Qualifications & Registration
When to Instruct a Health Psychologist
Health psychologists are essential when the legal question involves the interface between mental well-being and physical health. Instruct this expert type when you need:
Illness Adjustment
Evaluating how a claimant has adapted psychologically to a life-changing physical diagnosis or injury.
Chronic Pain
Psychological formulation of pain, including catastrophising, kinesiophobia, and perceived disability.
Health Behaviours
Assessing the psychological factors influencing adherence to medical treatment or lifestyle changes.
Work Capability
Evaluating the impact of physical health conditions on psychological readiness for employment.
Medical Negligence
Assessing the psychological trauma resulting from medical errors or delayed diagnosis of physical conditions.
Medically Unexplained
Evaluating claimants with persistent physical symptoms that lack a clear organic cause (e.g., FND).
Legal Areas Covered
Health psychologists provide expert evidence across the following legal areas:
Personal Injury
Psychological sequelae of catastrophic injury, chronic pain claims, and adjustment to disability.
Clinical Negligence
Impact of delayed diagnosis, birth trauma, and surgical errors on the claimant’s health beliefs and well-being.
Employment Tribunal
Reasonable adjustments for physical health conditions, disability discrimination, and fitness for work.
Occupational Health
Assessment of work-related illness, burnout in medical settings, and health behavior change in the workplace.
Civil Litigation
Insurance disputes regarding chronic illness coverage and psychological factors in long-term disability.
Public Law
Assessments for healthcare provision disputes and community care needs for those with complex physical health.
Conditions Assessed
Chronic Pain
- Fibromyalgia
- Complex Regional Pain (CRPS)
- Chronic Back/Neck Pain
- Phantom Limb Pain
- Psychological Pain Processing
Illness Adjustment
- Adjustment to Disability
- Cancer Diagnosis Impact
- Cardiac Health Psychology
- Diabetes Management
- Life-limiting Illness Adjustment
Somatic Disorders
- Somatic Symptom Disorder
- Functional Neurological Disorder
- Illness Anxiety (Hypochondria)
- Conversion Disorders
Fatigue Conditions
- Chronic Fatigue Syndrome
- ME/CFS Formulation
- Post-Viral Fatigue Impact
- Sleep Disorders in Chronic Illness
Health Behaviours
- Treatment Non-Adherence
- Self-Management Capacity
- Health Risk Behaviours
- Weight Management Psychology
Other Conditions
- Psychogenic Seizures
- Psychosomatic Skin Conditions
- Gastrointestinal Psychology
- Tinnitus Distress
Our Assessment Process
Instruction Received
Submit your instruction with case details
Expert Matched
We identify the most suitable health psychologist
CV & Quote Sent
Expert CV and fee estimate within 1 hour
Assessment Scheduled
Face-to-face or video appointment arranged
Clinical Assessment
Comprehensive psychological interview
Report Delivered
CPR Part 35 compliant report delivered
What’s Included in the Expert Report
Report Contents
- Instructions and documents reviewed
- Relevant medical and health history
- Account of physical injury or diagnosis
- History of health behaviors and adjustment
- Mental state examination findings
- Psychometric test results (e.g., pain scales)
- Psychological formulation of health status
- Opinion on psychological causation
- Severity and impact on daily functioning
- Prognosis with psychological intervention
- Treatment recommendations (CBT, ACT, etc.)
- Statement of truth and declaration
Quality Standards
Why Instruct Our Health Psychologists?
Highly Specialist Panel
Access to HCPC registered health psychologists with clinical expertise in physical health settings.
CVs in 1 Hour
Rapid response with expert CVs and fee quotes tailored to health psychology cases.
Urgent Reports Available
1-4 day turnaround for court deadlines and fast-track litigation.
Nationwide Coverage
Experts located across the UK, plus remote video assessments for those with mobility issues.
HCPC Registered
All our health psychologists are fully registered with the Health and Care Professions Council.
Court Experienced
Experts experienced in providing oral evidence in personal injury and clinical negligence trials.
Fees & Funding Options
Private / Insurance
- Competitive fixed fees
- Fee estimate provided upfront
- Deferred payment available
- Direct billing to insurers
Legal Aid (LAA)
- LAA rates accepted
- Prior authority applications supported
- Experienced in publicly funded cases
Court / Corporate
- Corporate health assessments
- Tribunal-appointed instructions
- Clear, transparent fee structures
Frequently Asked Questions
While both are HCPC registered practitioners, health psychologists specialise specifically in the psychological aspects of physical health and illness. Clinical psychologists focus more broadly on mental health conditions across the lifespan. In cases involving chronic pain, medical negligence, or adjustment to physical disability, a health psychologist’s expertise in illness cognition and health behaviour is often more specific to the legal question.
Yes. Health psychologists are experts in the psychological formulation of chronic pain. They assess how psychological factors like catastrophising, fear-avoidance, and health beliefs contribute to the experience of pain and the level of functional disability reported by the claimant.
A health psychologist is often preferred when the case focuses on behavior change, adjustment to illness, or medically unexplained symptoms. Unlike psychiatrists, who are medical doctors focusing on medical diagnosis and medication, health psychologists provide a psychological formulation of how an individual interacts with their illness and healthcare system.
Yes. Health psychologists can assess mental capacity under the Mental Capacity Act 2005, specifically regarding decisions about physical health treatments, surgery, or end-of-life care, where the individual’s health beliefs and psychological state are central to the decision-making process.
Yes. Health psychologists use various validated tools such as the Pain Catastrophizing Scale (PCS), the Illness Perception Questionnaire (IPQ), and standardized measures of anxiety and depression (GAD-7, PHQ-9) to provide objective data for their reports.
Yes. Video assessments are highly effective for health psychology evaluations and are particularly beneficial for claimants with physical disabilities or chronic pain that makes travel difficult. Courts widely accept these remote assessments.
Instruct a Health Psychologist Today
CVs and quotes in 1 hour. Urgent reports in 1-4 days. Specialist psychological evidence for physical health claims and medical negligence.


