Dr Tony Tan obtained his MBBS in National University of Singapore in 1993 and his specialist qualifications in Obstetrics and Gynaecology in 2000. He was further trained in fetal medicine including twin pregnancies at Queen Charlotte's Hospital, London for a year till June 2003. He was a Consultant Obstetrician and Gynaecologist in the department of Department of Maternal Fetal Medicine, KK Women’s and Children’s Hospital till October 2006 and then Consultant Obstetrician and Gynaecologist and Clinical Director, Maternal Fetal Medicine, Raffles Hospital from November 2006 to June 2019.  He has set up his own clinic "Tony Tan Women and Fetal Clinic" at Mount Alvernia Hospital from 1st July 2019.  He has also been appointed as the Medical Director, Alvernia Obstetric Screening Centre from the same date.

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He is accredited to manage patients in all the private hospitals in Singapore including Mount Alvernia Hospital, Raffles Hospital, Parkway Hospitals (Mount Elizabeth Orchard and Novena, Gleneagles, Parkway East) and Thomson Medical Centre.  

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He specialises in the management of high-risk pregnancies. He has special interests in twin (both monochorionic and dichorionic) pregnancies, miscarriages, screening and diagnosis of fetal abnormalities, prevention and management of preterm labour, management of pre-eclampsia and intrauterine growth restriction and strategies to prevent stillbirth. He personally performs diagnostic scans during pregnancy (e.g. first trimester screening, second trimester fetal anomaly scan, and third trimester growth scan and Doppler studies) with a high-resolution ultrasound machine (GE E8 machine) and performs invasive diagnostic procedures (e.g. amniocentesis, chorionic villus sampling).

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He looks after low-risk pregnancies, and has been instrumental in developing the protocols based on the best evidences available that are used in the clinics and labour ward in Raffles Hospital, and also the patient counselling sheets for common obstetric procedures for the Obstetrical and Gynaecological Society of Singapore when he was the President. 

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Dr Tony Tan also looks after non-pregnant women. He does gynaecological screening for well women, screening for sexually transmitted infections, manages patients with fibroids, ovarian cysts, adenomyosis, endometriosis and pelvic inflammatory disease, and performs minor and major (both via the laparotomy or open and laparoscopic or minimally invasive approaches) gynaecological operations like hysteroscopy, dilatation and curettage, hysterectomy, myomectomy and ovarian cystectomy.However, he does not perform assisted reproductive techniques like SO-IUI (superovulation in utero insemination) and IVF (in vitro fertilization), though he looks after the high-risk pregnancies resulting from SO-IUI and IVF. 

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He had published in academic journals and is regularly invited to give academic lectures to fellow obstetricians and gynaecologists at local, regional and international medical conferences regularly.

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He was President of the Obstetrical and Gynaecological Society of Singapore in 2013-2014 and Chairman, Maternal Fetal Medicine Committee of the Asia-Oceanic Federation of Obstetricians and Gynaecologists in 2013-2017.  

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He is a fellow of the Royal College of Obstetricians and Gynaecologists in UK and Academy of Medicine, Singapore, and member of the Royal Australian and New Zealand College of Obstetricians and Gynaecologists. He is also an examiner for the MRCOG examinations and an examiner for the Exit examinations for local OG trainees.

 

He is a member of the International Society of Ultrasound in Obstetrics and Gynaecology (ISUOG) Asia Regional Advisory Committee - a committee that advises on Asian education efforts of ISUOG towards education of ultrasound in obstetrics and gynaecology - since 2022, and was a member of Ultrasound Committee of the Asia-Oceanic Federation of Obstetricians and Gynaecologists in 2022.

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He is also a member of the SingHealth Centralised Institutional Review Board which is the central ethics review board to protect the rights and welfare of human subjects involved in biomedical and behavioural research activities being conducted under the SingHealth institution.  

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Dr Tan has been appointed as the Section Chairman of Maternal Fetal Medicine of the College of Obstetricians and Gynaecologists, Singapore for the term of 2023-2025. He has been appointed as a member representing the College of Obstetrics and Gynaecology in the Faculty of Medical Experts Committee, Academy of Medicine since 2021, and is now the co-chairman of the Faculty of Medical Experts Committee, Academy of Medicine since 2024.  He is also a member of the Medical Experts Committee (MEC) for Policies, Training and Education.  He has provided expert medical opinions for local obstetric medicolegal disputes.