Our Doctors
Dr Michael
Size
M.B., B.S.
Michael graduated from the University of Sydney in 1980 and completed the Family Medicine Programme.
Michael began in general practice in Manly and moved to Allambie in 1989. Michael has special interests in dealing with chronic medical conditions and preventive medicine
Dr Ian
Longhurst
M.B., Ch.B.
Ian graduated from the University of Auckland in 1987, gained experience in general practice in Australia and joined the Allambie practice in 1990.
He has a special interest in men’s health, preventive medicine and lifestyle medicine
Dr Heather
Judd
M.B.,B.S. Hons FRACGP
Heather graduated from the University of NSW in 1983 and completed the Royal Australian College of General Practitioners Fellowship training programme in 1988.
Heather was involved in medical education, research and teaching in nutrition for the University of NSW for a number of years.
Heather has been at Allambie since 2001
Dr Ruzica
Tatomirovic
M.B.,B.S. FRACGP
Ruzica graduated from the University Of Nis in 1982 and completed post graduated studies in occupational medicine at the University of Belgrade in 1987.
She obtained her fellowship of the Royal College of General Practitioners in 2005 and joined us at Allambie in 2006.
Ruzica has special interests in paediatric medicine, young adults, women’s health and preventive medicine
Dr Vivien
Hsu
B.Med, MD, FRACGP
Vivien graduated from the University of NSW and was a conjoint lecturer at UNSW for several years. She has completed a Dipolma in Obstetrics and Gynaecology and has special interests in women’s health, paediatrics and preventative medicine. Vivien is also fluent in both Mandarin and Cantonese
Vivien is currently on Maternity Leave and will return in July 2025
Dr David
Cosgriff
M.B.,B.S. FRACGP
David graduated from Western Sydney University in 2011. He has special interests in managing patients with complex needs, preventative medicine, travel medicine, men’s health, mental health and paediatrics
David is a conjoint lecturer at Western Sydney University
Outside of work, David enjoys spending time with his young son and is an avid hiker, biker and kayaker
Dr Nikita
Naik
M.B.,B.S. FRACGP
Nikita graduated from Western Sydney University in 2013. She attained fellowship for General Practice through the Royal Australian College of General Practice in 2019.
Nikita has interests in all areas of general practice, in particular womens’ health, childrens’ health and sexual health. With extensive training in metropolitan and rural centres she brings a broad range of expertise to our clinic. Nikita’s goal is to empower patients with the knowledge and skills to manage their health effectively, fostering a collaborative approach to wellness.
Cathy Santos
Practice Manager
With more than 20 years’ experience in practice administration our Practice Manager, Cathy, has a deep understanding of our patients’ needs. Cathy grew up on the Northern Beaches and has a strong rapport with the local community.
She is committed to a high level of customer service with a strong focus on communication and patient care.
Our Nurses
Our nurses are Sarah V, Sarah M, Naomi, Ellen and and Jess. They perform venesections and vaccinations, dress wounds and ulcers, and perform tasks essential to the health and well being of our patients. They triage urgent or emergency consultations, advise patients of their results, organise health assessments and management plans for our patients, run our Diabetes clinic and perform diagnostic tests on patients such as ECGs, Spirometry and Doppler tests
Reception
Our experienced reception staff are Tani, Krista, Maggie, Deborah, Justine, Lisa and Nic. They are the patient’s first port of call whether in person or by phone. If you are having any problems please let our receptionists know. They can talk to a nurse, the practice manager or, if necessary, to your doctor
