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Who We Are

Who We Are

Top Quality Care

At Pasithea Clinics, we use only the most highly qualified psychiatrists. Our team of exceptionally credentialed anesthesiologist and expert registered nurses provide you with the best possible care. You can relax, feeling confident in the knowledge that our treatments meet the highest professional standards.

Dr Tiago Reis Margues

CEO of Pasithea Therapeutics

Dr Marques is a fellow at Imperial College London and a lecturer at the Institute of Psychiatry, King’s College London. Dr Marques is also a psychiatrist at Maudsley Hospital, rated as one of the top three psychiatry centres in the world. His research focuses on topics including the mechanism of action of psychiatric medication and the unveil of novel treatment targets. Dr Marques has co-authored international treatment guidelines and written book chapters, including in the leading book in the field, “Neurobiology of Mental Illness”.

Dr. Yassine Bendiabdallah
Mpharm, PhD, IP, ABAAHP

Co-Founder & COO

Dr Yassine Bendiabdallah is a Functional Medicine Specialist and an expert in Bio- identical Hormone therapy.

His previous academic degree as an anticancer research scientist at the Cancer Research UK at University College London has earned him various distinctions and publications in peer-reviewed academic journals. His clinical interests include functional approaches to mitochondrial rejuvenation, nutritional optimisation and treating cellular dysfunctions. Yassine co-founded and is the MD of Zen Healthcare comprising a medical clinic, a health and wellness centre and a pharmacy in several locations in London including Knightsbridge, Baker Street and Holborn.

Mr. Hassan Almuaathen


Mr Hassan Almuaathen (MPharm) is a director and co-founder of Zen. He has qualified as a pharmacist in 2011 and has since managed one of the busiest most exclusive pharmacies in London. His interests include functional medicine and genetic health advances.

Dr Antonio Metastasio
MD, MSc, MSt (Cantab), MRCPSych

Leading Psychiatrist

Dr Antonio Metastasio is a Medical Doctor and a Consultant Psychiatrist. Dr Metastasio has significant experience as a psychiatrist both in the NHS and in the independent sector.

Dr Metastasio graduated Magna cum Laude at the University of Perugia Italy and subsequently earned two Masters degree at the King’s College London (Neuroscience) and at the University of Cambridge (Genomic Medicine). He trained in Geriatric Medicine in Italy and in Psychiatry in the United Kingdom becoming member of the Royal College of Psychiatrists.

Dr Metastasio has a special interest in emerging treatments and in personalised medicine. Dr Metastasio has also been acting as an advisor in Personalised medicine start-ups and has been involved in cutting edge research and clinical trials. Dr Metastasio has a special interest in rapid acting antidepressants, cognitive and in creativity enhancers. He has published extensively in the field of affective disorders, addictions, cognitive impairment and innovative treatments.

In his spare time Antonio enjoys travelling, reading, Opera, watching films, cooking and also playing with his two children.

Dr Farah Mitha

Clinical Psychologist

Farah has over 15 years clinical experience of working both in the NHS and private sector, providing evidence based psychological treatment, interventions, and guidance for adults throughout the life span, teenagers over 14 years and couples. Being a Counselling Psychologist, qualified psychotherapist, and an accredited CBT therapist, she tailors her approach to the individual client’s needs. Mainly using Cognitive Behavioural therapy (CBT), she also integrates other evidence-based approaches to work towards the client’s therapeutic goals. These may be short term goals, that lend themselves to briefer therapy, or longer-term goals leading to more in-depth exploration of longer standing issues. Therapy is seen as a collaborative process to help clients make the changes they desire.

Her clinical experience includes a wide range of emotional and psychological difficulties from mild depression and anxiety to complex trauma, with a special interest in OCD. She is able to offer specialised trauma treatment for PTSD in the form of Eye Movement Desensitization and Reprocessing (EMDR). Alongside her clinical work, Farah is able to provide coaching and level A and B psychometric testing. She also enjoys disseminating her knowledge through professional supervision and has a special research interest in mindfulness.

Farah’s first career was as a Business Analyst in the IT industry. Therefore, Farah has first-hand experience of the difficulties within the corporate world. It was whilst working through her own struggles she choose a career to help others through psychology.

Miss Sofia Vago

Manager & Customer Service Coordinator

Sofia began her career as a medical receptionist in the NHS and worked her way up to being a clinic manager on Harley Street. Sofia has also worked as a Care Plan Co-ordinator for Cygnet Psychiatric Hospitals and had a career with the Royal College of Psychiatrists. Sofia now co-ordinates all our patients and runs our UK clinics.

Ms. Tara King

Clinic Nurse