Meet Our Team
Our dedicated professionals bring expertise and compassion to support your mental health journey.
Our Clinical Team
Dr Marilena Tzafettas
Psychologist & CBT Therapist
Dr Tzafettas is a registered Health Psychologist and CBT Therapist with years of experience in several fields, mostly focusing on adults but with some experience in adolescents too. Dr Tzafettas specialises in the treatment of anxiety disorders/stress, depression and any psychological challenges associated with physical health issues (i.e. chronic pain, long-term conditions). Her approach to to treatment is integrative, which includes CBT and Schema Therapy. Dr Tzafettas completed her Stage 2 training in Health Psychology with the British Psychological Society (BPS) and became a Chartered Health Psychologist (BPS; HCPC). During the same time she was offered a PhD scholarship from London Metropolitan University and carried out her doctoral research at King’s College Hospital where she investigated the decision-making process of pregnant women in relation to invasive and non-invasive prenatal diagnostic testing regarding chromosomal abnormalities. Prior to transitioning to private practice, Dr Tzafettas worked in the NHS as a High Intensity Therapist.
In addition to her BPS chartership, she also has accreditation with the BABCP and Health and Care Professions Council (HCPC).
Sharon Shokar
Cognitive Behavioural Therapist
Sharon Shokar is a BABCP accredited CBT Therapist with years of experience providing psychological interventions for adults experiencing stress, anxiety, depression and post traumatic stress disorder. Having spent several years in NHS primary care mental health settings, Sharon has in more recent years been delivering CBT based interventions within academic settings. Sharon’s main approach is Cognitive Behavioural Therapy (CBT) but her practice is informed by other approaches as well, allowing her to tailor treatment to each client’s needs. Sharon possesses a warm and friendly outlook, creating trusting and strong therapeutic relationships.
Eriola Mitsi
Cognitive Behavioural Therapist
Eriola is a BABCP-accredited Cognitive Behavioural Psychotherapist with over five years of experience within the NHS. Eriola specialises in CBT, which is an evidence-based therapy for treating depression, anxiety disorders, trauma and low self-esteem, all of which Eriola has extensive experience in working with.
Eriola’s goal is to create a safe, non-judgmental space where you can share your difficulties. Together, you will work on addressing unhelpful thinking patterns and behaviours to help develop your own coping mechanisms and skills, all within the context of a trusting therapeutic relationship.
Eriola also offers therapy in Greek and Albanian.
Dr Angelika Grechnaya
Counselling Psychologist
Dr Angelika Grechnaya is an HCPC-registered Counselling Psychologist with over six years’ experience in psychological assessment and evidence-based therapy. She supports adults with anxiety, OCD, GAD, depression, trauma, relational issues, and identity concerns.
She also focuses on body image, eating disorders, and self-worth, helping clients build self-acceptance and confidence.
Working integratively with CBT, psychodynamic therapy, and existential analysis, Angelika offers a holistic, compassionate, person-centred approach. She has experience across NHS services, private practice, and charities.
Known for her warm, collaborative style, she creates a safe space for clients to explore, heal, and grow, and is committed to promoting emotional wellbeing and self-acceptance.
Dr Angelika also offers therapy in Russian.
Dr Elena Xenophontos
Clinical Psychologist
Dr Xenophontos is an HCPC-registered Clinical Psychologist with over 15 years of experience supporting adults, children, families, couples, and carers across a range of mental health services. She works with people facing emotional and psychological challenges, helping them better understand themselves and find ways to move forward.
Dr Xenophontos's therapeutic approach is integrative and flexible, drawing on psychodynamic, relational, and attachment-based models, alongside present-focused therapies like Cognitive Behavioural Therapy (CBT) and Dialectical Behavioural Therapy (DBT). Dr Xenophontos is also trained in Eye Movement Desensitisation and Reprocessing (EMDR) and has a Foundation in Group Analysis. Therapy is always tailored to the individual’s needs and goals.
Dr Xenophontos works with people experiencing Anxiety, Low mood, Trauma, PTSD, identity issues, relationship difficulties and going through life transitions. She also supports those seeking deeper self-understanding and personal growth.
Dr Xenophontos offers therapy for individuals and couples both in-person and online, in English or Greek.
Dr Kimon Butzbach
Clinical Psychologist
Dr Kimon Butzbach is an HCPC-registered Clinical Psychologist who completed cognitive-behavioural therapy (CBT) training at Oxford University, an MSc in neuropsychology at Bristol University, and doctoral training in clinical psychology at Exeter University. Kimon brings a wealth of experience from working in adult mental health services and currently works part-time in the NHS across stroke wards.
In his private practice, Kimon draws on CBT and systemic (family) therapy, alongside a person-centred approach, offering a warm, collaborative, and compassionate space.
Dr Butzbach offers therapy for individuals and couples both in-person and online, in English or Greek.
Our Administration Team
Emma Thornton
Hello, i am Emma from Psych VA and i am the personal assistant for Dr Tzafettas and the team at The London Psychology Clinic. I am the person you will reach if you have any appointment or invoice queries and i also take care of the weekly invoicing for all clients. My previous background involved working in the dental sector for 14 years and so I have plenty of experience in supporting both healthcare professionals and their clients. As well as being a qualified dental nurse I also hold qualifications in bookkeeping, business administration and management. When I am not working you can find me spending time with my family. I have two strong-willed daughters who keep me and my husband on our toes!
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