Guy’s & St Thomas’ Hospital
Imperial College London
University College London Hospital
University College London
University College London Hospital
Royal Surrey NHS Foundation Trust
King's College London
Queen Charlotte’s And Chelsea Hospital
Guys and St Thomas’ NHS Trust
Royal London Hospital, Barts Health NHS Trust
The George Institute for Global Health
King’s College Hospital
Oxford University Hospitals NHS Trust
Queen Charlotte's and Chelsea Hospital
King’s College London
Guy’s & St Thomas’ Hospital
Guy’s and St. Thomas’ NHS Foundation Trust
London NW University Healthcare NHS Trust
North Central London
Erasmus University Medical Center
University Hospitals Sussex NHS Trust
Guy’s & St Thomas’ Hospital
Catherine Nelson-Piercy is a Consultant Obstetric Physician at Guy’s and St. Thomas’ Hospitals Trust and the Lead Obstetric Physician for the South East London Maternal Medicine Network. In 2010 she was awarded the title of Professor of Obstetric Medicine at King’s College London. Her undergraduate studies were at King’s College, Cambridge University and St Bartholomew’s Hospital. She trained as a physician, and was taught Obstetric Medicine by Professor Michael de Swiet.
Professor Nelson-Piercy is past President of the International Society of Obstetric Medicine (ISOM). She was founding co-editor in chief of the journal ‘Obstetric Medicine: the medicine of pregnancy.’
Professor Nelson-Piercy was a member of the NHS England expert group that developed the Networked model for maternal medicine and has been involved in the development of several evidence-based National Guidelines notably the RCOG Green top guidelines on “Reducing the risk of thromboembolism during pregnancy, birth & the puerperium” and ‘Management of nausea vomiting of pregnancy and hyperemesis gravidarum”. She has over 280 publications and has edited five books and written the successful Handbook of Obstetric Medicine, now in its sixth edition. She is also one of the central physician assessors for the UK Confidential Enquiries into Maternal Deaths.
Imperial College London
Catherine Williamson is Professor of Women’s Health at Imperial College London. She is also Consultant in Obstetric Medicine at Queen Charlotte’s, St Thomas’ and King’s College Hospitals.
She is a Fellow of the Academy of Medical Sciences and a NIHR Senior Investigator. In her clinical practice she manages women with medical disorders in pregnancy.
Her research focuses on the endocrine signals that influence alterations in bile acid, lipid and glucose homeostasis in normal and pathological pregnancies.
She also studies the maternal and fetal aetiology, outcomes and management of intrahepatic cholestasis of pregnancy, gestational diabetes mellitus, thyroid disease and severe hyperemesis gravidarum.
University College London Hospital
David Williams is professor of obstetric medicine at the Institute for Women’s Health, University College London (UCL). He specialises in the clinical management of pregnant women with medical and placental disorders. He leads the UCL maternal medicine research group who investigate the causes and targeted treatment of pregnancy syndromes. This includes pre-eclampsia, placental inflammatory syndromes, fetal overgrowth and acute fatty liver of pregnancy.
He developed the concept that pregnancy syndromes unmask a mother’s future health and is currently investigating how the placenta holds the key to the future health of her offspring. He recently worked as part of a national team to implement new clinical maternal medicine networks throughout the UK.
University College London
Alison Rodger is Professor of Infectious Diseases at University College London and Consultant in Infectious Diseases at the Royal Free Hospital in London. Her research interests include reducing rates of new HIV infections, assessing the cost effectiveness of global health care interventions and improving the long-term health of people with HIV.
Alison also worked on the Baby Biome Study which described how perinatal acquisition of gut microorganisms impacts on infant immune response and subsequent health outcomes. She is a lead infectious diseases assessor for UK maternal deaths reviews (MBRRACE). Alison sits on several national and international guidelines groups.
University College London Hospital
Dr Bethan Goulden is a Rheumatology and Obstetric Medicine Registrar at University College London Hospital, and Versus Arthritis Clinical Research Fellow in the department of Ageing, Rheumatology & Regenerative Medicine at University College London.
Her PhD explores the impact of pregnancy on immunity and future health in women with rheumatoid arthritis, and she leads the United Kingdom Obstetric Surveillance System Study of haemophagocytic lymphohistiocytosis in pregnancy and the post-partum. She co-chairs the British Society for Rheumatology Pregnancy and Rheumatic Diseases SIG, and was local organiser for the 12th International Conference on Reproduction, Pregnancy and Rheumatic Diseases (Rheumapreg, London). She has an interest in the intersection between inflammatory rheumatic disease and women’s health across the lifespan.
Royal Surrey NHS Foundation Trust
Dr Bhaskar Narayan is a Consultant in Intensive Care, Acute and Obstetric Medicine at Royal Surrey NHS Foundation Trust. After graduating from Cambridge University, he completed his postgraduate training in London, South East England, Greater Manchester, and Melbourne, and worked as a consultant at St Mary’s Hospital in Manchester prior to his current role. He has particular interests in pulmonary embolism and maternal critical care.
King’s College London, Guys’ And St Thomas’ NHS Foundation Trust
Caroline is a Clinical Senior Lecturer at the University of Edinburgh and an Honorary Consultant Obstetrician at NHS Lothian. Her special interests are in maternal metabolic disorders and their impact on adverse fetal outcomes, particularly studying hepatic blood glucose, lipid and bile acid regulation. Clinically, Caroline specialises in diabetes and liver disorders in pregnancy.
Caroline is the Maternal Medicine Representative for the British Maternal Fetal Medicine Society, and ex officio committee member of the MacDonald Obstetric Medicine Society; Caroline also sits on the RCP Joint Committee for Obstetric Medicine. She was awarded the ROCG William Blair Bell Memorial Lecture and the Harold Malkin Prize, and received the Tommy’s charity “Star Researcher Award”.
Queen Charlotte’s And Chelsea Hospital
Charlotte Frise is a consultant Obstetric Physician and is Lead Obstetric Physician for the NW London Maternal Medicine network.
She is a senior college lecturer in Clinical Medicine at Keble College, Oxford. She is co-editor-in-chief of the journal Obstetric Medicine.
She has also recently authored two textbooks: Obstetric Medicine, in the Oxford Specialist Handbooks in Obstetrics and Gynaecology series and Case Histories in Obstetric Medicine.
Advanced Nurse Practitioner –Epilepsy
Jen has worked in the field of Epilepsy since 1999 completing a Masters in Epileptology in 2004. Jen has worked as an epilepsy CNS/ANP in many of London’s teaching hospitals including Kings, UCH, The Royal Free and Barts she is currently an Advanced Nurse Practitioner at Guys and St Thomas’ NHS Trust.
Jen has a particular interest in the diagnosis and management of first seizures and care of pregnant women with epilepsy
Royal London Hospital, Barts Health NHS Trust
Kate is as a consultant obstetric physician at Barts Health NHS Trust and physician-lead of the North-East London maternal medicine network. She was lead investigator for a multicentre prospective cohort study examining the implications of CKD for women’s health and pregnancy. She has published articles on pre-pregnancy counselling, gestational acute kidney injury, superimposed pre-eclampsia in women with chronic kidney disease, transplantation in pregnancy, glomerular disease in women, thyroid disease in pregnancy, and management of inflammatory bowel disease in pregnancy.
She member of both the UK expert consensus group on kidney disease in pregnancy and the international KDIGO international group examining controversies in women’s health and kidney disease. She is lead author of the first UK guideline for the management of pregnancy in women with kidney disease.
She has authored chapters on obstetric nephrology for the Oxford Textbook of Clinical Medicine, Oxford Textbook of Clinical Nephrology, Comprehensive Clinical Nephrology and Chesley’s Hypertension. She is an author of the popular Oxford Handbook of Clinical Medicine.
The George Institute for Global Health
Dr Kate Womersley is Co-Principal Investigator of the MESSAGE Project (Medical Science Sex and Gender Equity) at The George Institute for Global Health at Imperial College London. She is also an Academic Clinical Lecturer and psychiatry higher trainee based in Edinburgh. Her clinical and research interests focus on intersections between the physical and mental health of women and girls across the lifecourse.
King’s College Hospital
Dr Lizemarie Wium is a consultant obstetric physician at King’s College Hospital NHS Foundation Trust, working across both King’s College Hospital and the Princess Royal University Hospital sites. She completed her MB ChB at the University of the Free State and went on to obtain her MMed (Internal Medicine) and FCP(SA) through the University of Pretoria in South Africa. Lizemarie completed training in obstetric medicine at Guy’s and St Thomas’ NHS Foundation Trust.
She is the co-founder and past president of the Society of Obstetric Medicine South Africa (SOOMSA) and serves as an associate member of the 2025–2027 FIGO Impact of Pregnancy on Long-Term Health (IPLTH) Committee. She remains passionate about improving access to evidence-based medical education for clinicians working in low- to middle-resource settings.
Oxford University Hospitals NHS Foundation Trust
Dr Mackillop is a Consultant Obstetric Physician, Oxford University Hospitals NHS Foundation Trust; Honorary Senior Clinical Lecturer, Nuffield Department of Women’s and Reproductive Health, University of Oxford; Fellow of both the Royal College of Physicians and Royal College of Obstetricians and Gynaecologists; President of the UK’s MacDonald Obstetric Medicine Society and Chief Medical Officer – Data & Research at Optum UK.
Dr Mackillop trained in General, Renal and Obstetric Medicine in Oxford, London and Sydney before taking up her consultant post in 2008.
Dr Mackillop has published over 100 peer-reviewed articles, national and international guidelines, book chapters and e-learning resources on a wide variety of medical conditions in pregnancy. She is Chair for the Joint Committee for Obstetric Medicine with The Royal College of Physicians (RCP) and is a member of the medical specialities board and the programme board for the diploma in Obstetric Medicine, RCP.
Her research interests include the role of remote monitoring solutions in women with medical problems in pregnancy with a particular emphasis of the intersection between primary and secondary care.
She led the development and evaluation of a patient app-to-clinician digital system for the management of women with diabetes in pregnancy through to commercialisation and scale; now used in over half of maternity units in England.
She leads the Data and Research strategy for Optum UK, the largest provider of clinical systems in primary and community care in the UK.
Queen Charlotte’s and Chelsea Hospital, Imperial College Healthcare NHS Trust
Mandish Dhanjal is a Consultant Obstetrician, Gynaecologist and Maternal Medicine specialist at Queen Charlotte’s and Chelsea Hospital, Imperial College Healthcare NHS Trust. She is the Lead Obstetrician for the North West London Maternal Medicine Network, and Obstetric Representative for the UK Macdonald Obstetric Medicine Society. She is an assessor for the UK-MBRRACE maternal deaths enquiry.
She advised on standards for the NICE guideline on intrapartum management of medical disorders in pregnancy and was a committee member on the NICE guideline on adrenal insufficiency. She has written and lectured widely on obstetric medicine and co-authored the Oxford Specialist Handbook on Heart Diseases in Pregnancy. She is co-director of the UK Obstetric Neurology Course. She currently is the Senior Independent Responsible Officer for Women’s Services for NHS Cheshire and Merseyside.
King’s College London
Melanie Nana is an NIHR clinical research fellow and obstetric medicine registrar and at King’s College London. She holds an endocrinology national training number in Wales but moved to London in 2020 to undertake the clinical fellowship at St. Thomas’ Hospital during which time she was taught obstetric medicine by Professor Nelson-Piercy and completed the Royal College of Physicians credential in Obstetric Medicine. She is the current RCP Trainee Committee Co-Chair.
Melanie has several publications related to obstetric medicine and is co-author of the European Guideline for Liver Disease and Pregnancy and upcoming RCOG Management of Nausea and Vomiting of Pregnancy and Hyperemesis Gravidarum.
She was awarded an NIHR research training fellowship in 2021. Her PhD, supervised by Professor Williamson, focusses on the nutritional status of women with hyperemesis gravidarum and the neurodevelopmental and metabolic consequences for their children.
Guy’s and St Thomas’ Hospital and the Queen Elizabeth Hospital
Dr Oseme Etomi is a Consultant Rheumatologist and Obstetric Physician in South East London and works across 2 NHS trusts including Guy’s and St Thomas’ Hospital and the Queen Elizabeth Hospital in Woolwich.
She trained in North-East London, in some of the most prestigious centres for Rheumatology including the Royal Free Hospital (National Centre for Scleroderma and other Connective tissue disorders) and Bart’s and the Royal London (National Centre of inflammatory arthritis and SLE). In 2017, Oseme undertook a clinical fellowship at St Thomas’s Hospital under Professor Nelson Piercy.
Within the field of Obstetric Medicine, her main interest is looking after women with inflammatory diseases and immunosuppression in pregnancy. She runs a weekly inflammatory rheumatic disease and a weekly inflammatory bowel disease clinic in pregnancy.
Oseme has published abstracts and papers on Inflammatory Rheumatic Disease in pregnancy. In 2018 she was awarded the best oral presentation at the international Society of Obstetric Medicine for her work in this field. She was also instrumental in setting up the British Society of Rheumatology Specialist interest group in Pregnancy in 2019. She sits on the advisory board for the Biologics in Rheumatoid arthritis Pregnancy (BiRAP) group and was one of the organisers of the highly successful 12th Rheumapreg Symposium in September 2023 in London.
Her other interests include work on diversity, inclusion and wellbeing. She is the lead for trainee wellbeing in O&G at GSTT. A role she is extremely passionate about.
Guy’s and St. Thomas’ NHS Foundation Trust
Dr. Siara Teelucksingh is a Consultant Acute and General Physician at Guy’s and St. Thomas’ NHS Foundation Trust and Consultant Obstetric Physician for the South West London and Surrey Heartlands Maternal Medicine Network.
Siara completed her undergraduate training at the University of the West Indies in Trinidad and Tobago and her postgraduate training in the London deanery.
Siara has a passion for acute care delivery and service design in maternity, and has led on education initiatives including multidisciplinary simulation training, hosting the PACES examination cycles and has delivered Obstetric Medicine themed lectures for the Royal College of Physicians.
Siara’s commitment extends to global health, where she has initiated a groundbreaking project to introduce Obstetric Medicine to the West Indies.
London North West University Healthcare NHS Trust
Pooja Dassan is a Consultant Neurologist, working at London North West University Healthcare NHS Trust (LNWUHT) and Imperial College Healthcare NHS Trust. She is the Associate Medical Director and Clinical Lead of Neurology at LNWUHT.
She has a specialist interest in Obstetric-Neurology and has led a joint clinic at Queen Charlotte’s and Chelsea Hospital for the last 10 years. She reviews women with a wide range of neurological issues for preconception counselling, antenatal and postnatal care.
She is an assessor for the MBRRACE confidential enquiry, reviewing maternal deaths from neurological causes across the UK.
She has co-authored the UK Consensus Guidelines on the Management of Multiple Sclerosis in Pregnancy, published in Practical Neurology in 2019.
North Central London
Dr Yasmin Jamil is a consultant obstetric physician and co-lead of North Central London Maternal Medicine Network. She also continues to practice in her base specialty of Acute Medicine in North Central London. Passionate about equity for all pregnant women and improving care pathways, she played a key role in set up of the NCL network including outreach clinics and MDTs to reach the most vulnerable women.
She also holds national roles as member of the UK obstetric surveillance society (UKOSS) steering group committee, consultant representative on the joint committee for Royal College of Physicians and Macdonald Obstetric Medicine Society and a member of Society for Acute Medicine Obstetric Medicine Advisory Group.
Erasmus University Medical Center
Tim Korevaar is an obstetric internist and endocrinologist at the Erasmus University Medical Center in Rotterdam, the Netherlands. His key interest is gestational and placental endocrinology including thyroid disease in fertility and pregnancy. Doctor Korevaar is the co-founder and coordinator of the Consortium on Thyroid and Pregnancy, the co-chair of the current ATA guidelines on Diagnosis and Management of Thyroid Disease During Pregnancy and the Postpartum and co-chair of the European Thyroid Association Guidelines on Hypothyroidism and Thyroid Autoimmunity During Pregnancy. He has been awarded with the Dutch Royal Academy of Sciences Early Career Award and the ESE Young Investigator Award and has published more than 140 peer-reviewed articles.
University Hospitals Sussex NHS Trust
Professor Yvonne Gilleece studied Medicine at University College Dublin, graduating with Honours in 1993. She continued her training as a junior doctor in Dublin and London where she developed an interest in HIV Medicine. She completed her Specialist Registrar training in Chelsea and Westminster Hospital. She was appointed Consultant in HIV Medicine in Brighton in 2005 where she continues to work as Honorary Clinical Professor and Consultant in HIV Medicine & Sexual Health at Brighton & Sussex Medical School and University Hospitals Sussex NHS Foundation Trust.
She is a national and international leader on HIV, particularly in women, and publishes regularly in peer reviewed journals. She is immediate past Chair of the British HIV Association 2023-2025 and was appointed Interim National Specialty Advisor for NHS England in 2025.
She specialises in HIV in Women and is immediate past Chair of the BHIVA Pregnancy Guidelines & WAVE, a subcommittee of the European AIDS Clinical Society. She also specialises in HIV and Bone and HIV in Hepatitis Coinfection & Liver Dysfunction.