Members of fertility team

Our fertility team

We have been looking after patients with straightforward and complex fertility challenges since 1982. You can trust you are in safe hands and being cared for by a team who have years of success in helping families to have children.

We were the first clinic to have a baby born by IVF in London and we continue to have some of the best success rates in the country. Some of the leading lights in fertility treatment have been part of our team over the years including Professor Robert Winston. We specialise in fertility preservation and have the longest established egg freezing centre in the UK – with over 20 years of experience.

All of our doctors are trained in gynaecology and obstetrics and together cover every aspect of reproductive medicine, including IVF and fertility treatments. Each consultant has special clinical interests so we can treat a broad spectrum of conditions.

Unlike some private fertility clinics, our fertility doctors are Royal College of Obstetricians and Gynaecologists (RCOG) accredited reproductive medicine subspecialists. This means all our team can work as NHS consultants and have higher degrees.

Our clinic is part of a large, world-renowned NHS Trust so we can draw on the expertise of clinicians from all different specialities and help patients with complex medical conditions to have successful fertility treatment.

The Wolfson Fertility Centre has close links with Imperial College London too. We use the latest technology and can offer you the chance to take part in research and clinical trials.

Our consultants and team

Miss Monica Mittal, consultant obstetrician and gynaecologist, head of IVF

Miss Monica Mittal is a consultant obstetrician and gynaecologist and is accredited as a subspecialist in reproductive medicine from the Royal College of Obstetricians and Gynaecologists. She has been a consultant at Imperial College Healthcare NHS Trust since 2018, at both St Mary’s Hospital and the Wolfson Fertility Centre, Hammersmith Hospital.

Read more about Monica Mittal

Miss Annabel Rattos, head of embryology

Miss Annabel Rattos is the head of embryology in the Wolfson Fertility Centre and a Diplomate of the Royal College of Pathologists (RcPath) specialising in reproductive science.

She graduated from the University of Hull and undertook postgraduate qualifications from the University of Greenwich. She originally trained in embryology within East Riding Fertility Services in Hull, East Yorkshire before returning to London and has over 10 years of experience working in both the public and private sectors of fertility.

Annabel is a member of the European Society of Reproduction and Embryology (ESHRE), the British Fertility Society (BFS) and the Association of Reproductive and Clinical Scientists (ARCS) and has regularly presented research at both national and international conferences. She leads a team of approximately 10 scientists in the provision of all specialised in-vitro techniques including pregenetic testing (PGT).

Annabel works closely with the National School of Healthcare Scientists (NSHCS) in providing training and development opportunities for future clinical scientists. Together with her team of highly trained clinical embryologists, Annabel ensures the highest standards of treatment and care are always maintained in the IVF laboratory.

Special interests

  • Donation and surrogacy
  • Gamete/ embryo culture
  • Embryo metabolism
  • Fertility preservation
  • Pregenetic testing
  • Quality and risk management
  • Clinical scientists training

Mr Rajendra Rai, head of specialty

Rajendra Rai is a consultant gynaecologist and Royal College of Obstetricians and Gynaecologists accredited sub-specialist in reproductive medicine. He has been a consultant at St Mary’s Hospital and subsequently Imperial College Hospitals NHS Trust since 2002. He is currently head of specialty for reproductive medicine and director of the reproductive medicine sub specialty training program at St Mary’s / Hammersmith hospital.

Read more about Rajendra Rai

Mr Sotirios Saravelos

Sotirios is a consultant gynaecologist and accredited subspecialist in reproductive medicine and surgery at the Trust. He also holds an Honorary Clinical Lectureship at Imperial College London.

Sotirios has unique clinical and research experience from working within several different IVF units across the UK, Europe, and Hong Kong. He has authored over 50 peer-reviewed publications and several book chapters in the field of fertility and IVF. He has also co-developed guidelines on topics such as recurrent miscarriage and congenital uterine anomalies for the Royal College of Obstetricians & Gynaecologists (RCOG), the European Society of Human Reproduction & Embryology (ESHRE) and the European Society for Gynaecological Endoscopy (ESGE). Such guidelines set the standards of care within the UK and Europe, and are used by clinics and hospitals across the world.

Sotirios is frequently invited to lecture at national and international conferences and has a special interest in the application of novel technologies and Artificial Intelligence in the field of reproductive health.

Read more about Sotirios Saravelos

How to find us

Wolfson Fertility Centre
Block C, Hammersmith Hospital
Du Cane Rd
London W12 0HS

If you would like further information about our fertility services:


Call: +44 (0)20 3313 4411