The Blue Tree Clinic - Find Best Private psychiatrists, psychologists, Nutritionist & CBT Therapists for Private Assessment and Treatment of all mental health-related disorders in Harley Street, London, Bristol, Bath, Cheltenham & other South-West locations. Get help from our private therapy clinic today. We pride ourselves on having the best private psychiatrists and psychologists in London. We are a small boutique clinic in central London and our psychiatrists and psychologists and other professionals work together to create treatment plans tailored to each patient.