Mr William Dennes

Mr William Dennes of The London Obstetric Practice is an experienced Consultant Obstetrician who has been providing private antenatal care and delivery to mothers in London since 2006.

As an experienced obstetrician, William is well-practised in all aspects of antenatal ultrasound imaging, particularly non-invasive prenatal screening and prenatal diagnostic testing, such as chorionic villus sampling (CVS) and amniocentesis. William also has a specialist interest in high-risk obstetric cases, caesarean section and multiple pregnancies.

Mr Dennes sees patients for both preconceptual (pre-pregnancy) and antenatal consultations. He is happy to see patients for one-off appointments and ultrasound scans or whole pregnancy care.

Get in touch

Mr William Dennes is happy to see patients at any stage of their pregnancy and for one-off appointments.. He also sees patients pre-pregnancy to discuss and manage medical conditions or concerns.

Referrals are not required and patients are welcome to contact the practice directly for further details.


020 7935 4431

[email protected]

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William is accredited with the Fetal Medicine Foundation and routinely carries out invasive prenatal diagnostic testing and more complex invasive procedures. He is the clinical lead at Imperial College NHS Trust for the management of Fetal anemia including in utero fetal blood sampling (FBS) and transfusion.

William graduated in London from the Royal Free Hospital School of Medicine (University of London) and subsequently went on to specialise in obstetrics and gynaecology in London and the North West Thames region. Initially training at Hammersmith Hospital, he returned to Hammersmith and Queen Charlotte’s and Chelsea Hospital for further postgraduate research, completing his PhD thesis on the molecular mechanisms involved in premature labour. Following the completion of his training in obstetrics and gynaecology, William underwent sub-specialty training in maternal and fetal medicine at the Centre for Fetal Care at Queen Charlotte’s and Chelsea Hospital.

In 2006, William was appointed Consultant Obstetrician at King’s College Hospital. He returned to Queen Charlotte’s Hospital in 2013, where he currently holds a post as Consultant Obstetrician and as a specialist in fetal medicine; as well as being the Lead for the Obstetric Private Practice at the hospital.

As a leading expert, William has contributed to publications in the field of obstetrics and fetal medicine, as well as reviewing papers for peer-reviewed journals and contributing to medical book chapters. He is a member of the British Association of Perinatal Medicine, and the British Maternal Fetal Medicine Society.