Dr Tony Liu


Dr Tony Liu specialises in all aspects of paediatrics. He accepts referrals from all general practitioners.

Dr Tony Liu is a graduate of the University of Sydney and trained as a general paediatrician at the Children’s Hospital at Westmead. His paediatrics expertise is in children’s growth and development including ailments such as asthma, ear, nose and throat infections, urinary tract infections and gastrointestinal disorders. In 2003, Dr Liu spent a year in research on urinary tract infections and also obtained his Master of Public Health.

Dr Liu’s other interest is in medical education as he has a passion for training the next generation of doctors. He has completed a Master of Medical Education at the University of Sydney.

In addition to his rooms at Mortlake and Castle Hill, Dr Liu also works at The Nepean Hospital.

A fee is charged at the time of the consultation. A medicare rebate is available to patients with a gp referral and valid Medicare card.

Dr Maria Dias


Dr Maria Dias is a fellow of the Royal Australian College of General Practitioners. She graduated from NSW University in 1998 and has worked at Concord and Westmead Hospitals. She also spent a year working at the Children's Hospital at Westmead where she completed a Diploma in Child Health. Since completing her general practice training, she has worked in practices in Ultimo and Broadway.

She is interested in all aspects of general practice with a special interest in women's and children's health and sexual health. She is an accredited provider of antenatal shared care, including genetic counselling, with RPA Hospital.

Dr Michelle Doan-Vance


Dr Michelle Doan-Vance is a Fellow of the Royal Australian College of General Practitioners. She has also completed a diploma in Child Health. She is interested all aspects of general practice with a special interest in women’s and children’s health, sexual health and chronic disease management and preventative health care.

Dr Rukmal (Rocky) Gamage

MBBS Hons (Colombo), FRACGP

Rocky Gamage graduated with honours from the University of Colombo in 2004 and entered into Family medicine training. In 2007 he moved to a regional hospital in Srilanka as a generalist with special skills in Anaesthesiology. He moved to Australia in 2010, and obtained Fellowship in Royal Australian College of General practitioners (FRACGP) in 2014.

He successfully completed a Diploma in child health in 2012, and a Certificate course in Sexual and reproductive health in 2013. In 2016, he started a Certificate of primary care dermatology. He continues to attend leading medical conferences in Australia and around the world.

He is proficient in all aspects of general practice. His special interests are food allergy/ intolerance, Autoimmune diseases, and healthy aging. He continues to study complementary and integrative medicine.

He lives with his wife Dilum, whom he met while they were medical students. She works as a consultant psychiatrist at Concord Hospital. They enjoy traveling, hiking, and being active in the local community. They value a simple life.

Dr Amy Nguyen


Dr Amy Nguyen is a Fellow of the Royal Australian College of General Practitioners. She graduated from Monash University in Melbourne. She has an interest in Women's and Sexual Health and children's health, preventative health and chronic disease management.

Dr Jeremy Nguyen


Dr Jeremy Nguyen is a Fellow of the Royal Australian College of General Practitioners. He graduated from the University of NSW, and subsequently pursued his special interests in paediatrics and women's health, completing the Diploma in Child Health through the Children's Hospital at Westmead, and the Diploma of Obstetrics and Gynaecology through the Royal Australian and New Zealand College of Obstetricians and Gynaecologists during his hospital years and general practice training.

Dr Jeremy Nguyen is an accredited antenatal shared care provider for Royal Prince Alfred, Prince of Wales, Royal North Shore and Westmead Hospitals. He is interested in all aspects of general practice and family medicine, including travel, skin, sexual health and preventative chronic disease management.

Outside of medicine you will find him cycling, playing soccer, swimming, skiing and snowboarding whilst trying not to sprain his ankles.

Dr Marek Steiner

MBBS (Sydney), FRACGP, GradCertAvMed, BEng(Civil) Hon I

Dr Marek Steiner is a Fellow of the Royal Australian College of General Practitioners. He graduated from Sydney University in 2002 and worked at The Nepean Hospital in the areas of general medicine and surgery, emergency medicine, obstetrics and gynaecology. Dr Steiner then completed his general practice training in practices in Bomaderry, Leichhardt and Ashfield.

He is interested in all aspects of general practice and family medicine, with a particular focus on chronic disease management, travel medicine, exercise and lifestyle medicine, men's health, and disease prevention.

Dr Steiner is a DAME and conducts Aviation medicals for pilots.

Dr Steiner also speaks Polish.

Dr Steiner is a keen archer, a member of Sydney Olympic Park Archers, and currently on the Australian Paralympic Team. He is also a national classifier for the sport of para-archery.

Dr Melissa Tang

MD (UNSW), FRACGP, BMed (UNSW), Dip.Child Health

Dr Melissa Tang is a Fellow of the Royal Australian College of General Practitioners. She completed her medical studies at the University of New South Wales. During her hospital training years, she worked at St George Hospital, The Sutherland Hospital and Griffith Base Hospital. Dr Tang is passionate about all aspects of general practice and preventative care, with special interests in Women's Health, Travel Medicine and Paediatrics - completing the Diploma of Child Health in 2017.

Dr Tang can speak Vietnamese. In her spare time, she enjoys hiking, gardening and travelling the world.

Dr Marina William


Dr Marina William is a Fellow of the Royal Australian College of General Practitioners. She graduated from Western Sydney University and subsequently pursued her special interests of women's health and family planning by completing the Diploma of Obstetrics & Gynaecology at Gold Coast University Hospital.

Dr Marina William is interested in all areas of medicine, particularly preventative health care, chronic disease, antenatal care, breastfeeding medicine, children's health, women's health and sexual health. She is an accredited antenatal shared care provider, Implanon & IUD inserter and registered provider of Medical Terminations of Pregnancy. She also offers Iron infusions to suitable candidates.

Dr Marina William speaks Arabic fluently and in her spare time enjoys travelling, reading and baking.

Dr Xiaoyi Zhai

MD (UNSW), BMedSci Hons (UNSW)

Dr Xiaoyi Zhai is a friendly and approachable GP who grew up in the suburbs around Northern Sydney. Having loved science since childhood, and teaching since working as tutor in high school; he eventually decided being a doctor would be a great mix of both.

He graduated medicine from University of New South Wales in 2016. He really enjoyed his internship and residency at Bankstown and Campbelltown hospitals. However, he decided to pursue a career in general practice because he really enjoys building a cooperative and trusting relationship with people over time.

He enjoys tackling most of the breadth of medicine within general practice. But in particular, he has a special interest in preventative, geriatric, men's health, travel, procedural and skin cancer medicines.

His style as a GP is not the fastest. However, he is very open to questions and enjoys explaining medical concepts to patients so that he can empower them and work together to keep his patients healthy!

Dr Ying Shi Zhou

MBBS (Newcastle), FRACGP

Dr Zhou is a Fellow of Royal Australian College of General Practitioners. She obtained her Bachelor of Medicine degree at The University of Newcastle and has worked at Concord, Canterbury, Broken Hill, Royal Prince Alfred and Eastern Suburbs Private Hospitals. She has completed a Diploma of Child Health through The University of Sydney and is an accredited provider of antenatal shared care with Royal Prince Alfred Hospital.

Dr Zhou has broad experience in all aspects of medicine and enjoys the holistic care that general practice brings. Currently she is also working part time at Family Planning NSW and has obtained the FPAA National Certificate for Reproductive and Sexual Health. She has a special interest and is experienced in all areas of reproductive & sexual health: including Implanon insertions/removals, intrauterine device (IUD) insertions/removals, cervical screening (pap tests), contraception, pregnancy advice and care, subfertility/infertility, menstrual problems, menopause management, testing for sexually transmitted diseases and sexual health issues.

Dr Zhou can speak Cantonese fluently. In her spare time she enjoys being in the great outdoors, reading, travel and has a passion for the arts.

RN Sophia Qiu

Registered Nurse

Ms Sophia Qiu has many years experience as a Registered Nurse. She currently assists the doctors and performs blood collections, vaccinations, iron infusions, pap smears, wound care and chronic disease management. She also assists Dr Steiner in performing Aviation medical examinations.

RN Saera Han

Registered Nurse

Ms Saera Han has worked as a practice nurse in general practice for several years. She also assists doctors and performs vaccinations, wound care and chronic disease management.

RN Cathy Kim

Registered Nurse

Ms Cathy Kim has recently joined our clinical nursing team.