Dr Dmitri Popelyuk, MD MRCPsych FECSM

GMC: 5206613

Dr Popelyuk is a Consultant Psychiatrist based at Nightingale Hospital in Marylebone and provides easy and reliable access to diagnosis, effective treatment and the best patient experience for people suffering from mental health problems.

He studied medicine at Odessa Medical University and trained in psychiatry at the Maudsley and Royal Free Hospitals in London, specialising in general adult psychiatry, rehabilitation psychiatry, personality disorders, psychotherapy and psychosexual medicine.

He believe in the continuity of patient care. He provide assessment and treatment in any setting, whether it is at the patient's home, outpatients clinic or in hospital.

Dr Popelyuk is the medical director of our clinic.

Dr Anna Streeruwitz, MRCPsych MSc MInst Psychoanalysis

GMC: 6052164

Dr Streeruwitz focuses on the assessment and treatment of patients with emotional and affective instability, working with complex conditions and providing reliable and consistent care. She has a particular interest in affective and anxiety disorders, taking great care to get the diagnosis right from the outset. Additionally, her psychotherapy skills allow her to offer a range of approaches in addition to medication to guarantee a holistic approach.  

Dr Streeruwitz has extensive experience looking after patients with diverse, complex and chronic needs. She was the specialty registrar on the Maudsley Intensive Care Unit, responsible for the day-to-day running of a unit treating men with severe psychiatric morbidity and significant risk issues. She then worked at the Cawley Centre Day Hospital for patients with personality disorders, before working in the psychotherapy department at St Thomas’ Hospital, where she was responsible for the assessment of patients with psychiatric comorbidity or risk issues and liaising with GPs and local IAPT teams.  

Dr Streeruwitz has initiated and participated in quantitative and qualitative research projects, exploring the patient experience and expectations of treatment and the translation of guidelines into everyday clinical practice.  

In addition to her private practice at our clinic, Dr Streeruwitz has also worked at the Anna Freud Centre as part of the Court Assessment Service, working with the families of those suffering with mental health problems. 

Dr Leontis, MBBS BSc MRCPsych MSc 

GMC: 472374

Dr Leontis is a practising Consultant Psychiatrist with dual accreditation and training in Psychiatry of Adults of working Age and Psychiatry of Older Adults. She became a member of the Royal College of Psychiatrists in 2005 and received her Certificate of Completion of Training in General Adult and Older Adult Psychiatry in 2010.

Dr Leontis has been working as a consultant since 2010 in Specialist Memory services and Psychiatry of Older Adults. Alongside duties relating to both organic and functional inpatient units, day hospital clients and outpatient/community responsibilities, she was also the clinical lead for the local Memory Assessment service which provides an inclusive diagnostic and treatment management service across the Trust for people over the age of 18. She has been heavily involved in service development and improvements, as well as offering second opinions for patients of all ages with complex presentations.

In addition to her more recent work as a memory specialist, she has a varied background of experience including Forensic Psychiatry, Neuropsychiatry and Drug and Alcohol services. She has experience in psychotherapy including CBT and psychodynamic psychotherapy, and has participated in medical research including randomised controlled trials for treatment of behavioural problems in patients with probable Alzheimer’s disease. Dr Leontis has been also heavily involved in training junior doctors and medical students for over a decade.

Dr Leontis prides herself on her communication skills, empathy and belief in the importance of continuity of care with patients. She is warm, has a compassionate nature with patient and ability to put people at ease.