Our Team

The Sydney Endocrinology team founded the first private diabetes centre in New South Wales.

The Sydney Endocrinology team now includes 7 specialist endocrinologists, a credentialed diabetes educator, 2 accredited practising dietitians and a psychologist. Outpatient consultations are available in 3 locations in Sydney - St Vincent's Hospital, Darlinghurst; Pacific Hwy, North Sydney and Chapel Road in Bankstown.

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    A/Prof Katherine Tonks

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    A/Prof Katherine Tonks

    1. Endocrinologist
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    Dr Chelsea McMahon

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    Dr Chelsea McMahon

    1. Endocrinologist
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    Dr Monika Fazekas-Lavu

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    Dr Monika Fazekas-Lavu

    1. Endocrinologist
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    Dr Santhi Chalasani

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    Dr Santhi Chalasani

    1. Endocrinologist
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    Dr Nadia Manzoor

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    Dr Nadia Manzoor

    1. Endocrinologist
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    Dr Julia Shrosbree

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    Dr Julia Shrosbree

    1. Endocrinologist
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    Dr Joel Lasschuit

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    Dr Joel Lasschuit

    1. Endocrinologist
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    Dr Wendy Bryant

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    Dr Wendy Bryant

    2. Diabetes Educator
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    Ms Cheryl Lum

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    Ms Cheryl Lum

    3. Dietitian
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    Ms Christine Poon

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    Ms Christine Poon

    3. Dietitian
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    Sarah Lam

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    Sarah Lam

    4. Psychologist
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    Dr Nele Leenders

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    Dr Nele Leenders

    5. General Practitioner
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    Josephine Vigier

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    Josephine Vigier

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A/Prof Katherine Tonks

Endocrinologist BSc(Med), MBBS(Hons), MPH(Hons), FRACP, PhD

A/Prof Tonks is a Staff Specialist of the Department of Endocrinology, St. Vincent’s Hospital, Sydney, Visiting Medical Officer at the Mater Hospital, Sydney, and Clinical Research Officer of the Diabetes and Obesity Research Program, Garvan Institute of Medical Research, Sydney.

A/Prof Katherine T. Tonks is a Staff Specialist of the Department of Endocrinology, St. Vincent’s Hospital, Sydney, and Clinical Research Officer of the Diabetes and Obesity Research Program, Garvan Institute of Medical Research, Sydney. She sees patients at St. Vincent’s Hospital, Darlinghurst, the Mater Clinic and Hospital, North Sydney, and in consulting rooms at Bankstown.

After completing her medical degree at the University of New South Wales with Honours, she worked as a junior medical officer at the Royal Prince Alfred Hospital (RPAH), Camperdown. She underwent her Advanced Endocrine Training at St. Vincent’s Hospital, St.George Hospital, and the Garvan Institute of Medical Research, and was admitted to the Royal Australian College of Physicians as an Endocrinologist in 2008.

A/Prof Tonks helped form the Multidisciplinary Diabetes Foot Clinic at St. Vincent’s Hospital in 2008, and was accepted into the Diabetes Centre at St. Vincent’s Hospital in 2009 as an Honorary Medical Officer. She is also currently a Staff Specialist at St. Vincent’s Hospital.

A/Prof Tonks’ areas of interest are diabetes (type 1, type 2 and pregnancy-related), insulin resistance including polycystic ovarian syndrome, thyroid disorders, obesity and other endocrine diseases.

She regularly attends national and international meetings and has given talks to scientists, other doctors, and public seminars at the Garvan Institute and for the Australian Pituitary Foundation. She is an invited speaker at the 2011 Endocrine Society of Australia Annual Scientific Meeting, Perth.

Consultations:
  • Mon

    Chapel Road rooms, Bankstown

  • Tues and Fri

    North Sydney rooms

  • Wed and Thurs

    St. Vincent’s Hospital, Darlinghurst

  • Virtual Clinic

    via Skype teleconference


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Dr Chelsea McMahon

Endocrinologist BSc(Hons), MBBS, FRACP

Dr Chelsea McMahon is an Endocrinologist committed to providing personalised evidenced based medicine.

Dr McMahon’s areas of interests include osteoporosis and bone and calcium disorders, diabetes (type 1, type 2 and pregnancy-related), insulin resistance including Polycystic Ovarian Syndrome, thyroid disorders, metabolic syndrome and obesity.

After finishing secondary school at Ravenswood School for Girls, Dr McMahon completed a Bachelor of Science and her medical degree at the University of Sydney. She commenced her medical career as a junior medical officer at St Vincent’s Hospital in Darlinghurst and then proceeded to specialist training in Endocrinology at St Vincent’s and Concord Hospitals.

She regularly attends national and international meetings and has ongoing research at The Garvan Institute of Medical Research looking at the effect of bisphosphonate therapy on the human immune system, and the baseline predictors for disorders of glucose metabolism in individuals infected with the HIV virus.

Consultations:
  • Wed and Thurs

    North Sydney rooms

  • Virtual Clinic

    via Skype teleconference


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Dr Monika Fazekas-Lavu

Endocrinologist BSc, MBBS, FRACP

Dr Monika Fazekas-Lavu is an Endocrinologist with particular interest in the management of diabetes (Type 1, Type 2, steroid-induced and pregnancy-related), osteoporosis, thyroid disease, obesity and other endocrine diseases.

Dr Fazekas-Lavu completed her Bachelor of Science degree in Biochemistry and Microbiology in Victoria, British Columbia, Canada. She moved to Australia to complete her medical degree at the University of Sydney. She undertook her Advanced Endocrine Training at Prince of Wales Hospital and St Vincent’s Hospital.

She regularly attends national and international endocrine conferences to ensure she provides her patients with the best of care catering to their individual needs by remaining at the forefront of clinical advances in the field. She has continuing research at the Garvan Institute of Medical Research looking at prevalence of diabetes and bone disease in Heart and Lung transplant recipients at St Vincent’s Heart and Lung Clinic.

Consultations:
  • Mon

    North Sydney rooms


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Dr Santhi Chalasani

Endocrinologist MBBS(Hons), FRACP, MPhil

Dr Chalasani undertook sub-specialty Endocrinology training at several major teaching hospitals in Sydney (Concord, Nepean, and RPA) and completed basic physician training at Concord Hospital.

She graduated with Honours from the Monash Medical Program in 2005. In 2017 returned to Sydney after 3 years in Melbourne. During her time in Melbourne she worked in private clinics and completed her Masters in diabetes research through Sydney University.

Dr Chalasani’s interests are largely in diabetes, gestational endocrinology and thyroid disorders. She is currently involved in research with the The George Institute for Global Health trialling an electronic clinical decision support tool for general practitioners in the management of diabetes. She recently presented at the national RACGP conference.

Consultations:
  • Tues

    Chapel Road rooms, Bankstown


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Dr Nadia Manzoor

Endocrinologist BSc, MBBS, FRACP

Dr Nadia Manzoor is a consultant Endocrinologist with particular interests in pituitary disorders, thyroid disorders, management of diabetes (type 1, type 2 and pregnancy-related), insulin resistance including PCOS, obesity, osteoporosis; and other endocrine disorders.

She trained as a junior medical officer at the Royal Prince Alfred Hospital, and undertook her advanced training in Endocrinology at Wollongong and Liverpool Hospitals and St Vincent’s Hospital/Garvan Institute of Medical Research. During her pituitary fellowship year at the Garvan Institute, her research work focused on Cushing’s disease, prolactinoma, pituitary stimulation testing and growth hormone disorders.

Dr Manzoor regularly attends national and international diabetes and endocrine meetings to provide the best quality care to her patients.

Consultations:
  • Fri

    Chapel Road rooms, Bankstown


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Dr Julia Shrosbree

Endocrinologist BSc MBBS (Hons) FRACP

Dr Shrosbree is a specialist Endocrinologist who is committed to ensuring her patients receive evidence-based, personalised and professional care. She has particular interest in osteoporosis, thyroid and pituitary disorders, obesity, type 2 diabetes, diabetes in pregnancy, endocrine disorders associated with anorexia nervosa and bulimia nervosa and other general endocrine diseases.

Dr Shrosbree graduated with a combined Bachelor of Medicine and Surgery (Honours) and Bachelor of Science degree from the University of Sydney. She completed specialist training in Endocrinology at St Vincent’s Hospital, the Garvan Institute of Medical Research, Prince of Wales Hospital Randwick and Royal Prince Alfred Hospital Camperdown. Her training included a year of specialized training and research in the area of bone and calcium disorders through the department of Bone Biology at the Garvan Institute of Medical research and St Vincent’s Hospital. Her final year at Royal Prince Alfred Hospital focused on the management of endocrine diseases associated with eating disorders. She was awarded Fellowship to the Royal Australasian College of Physicians as an Endocrinologist in 2018.

She regularly attends national and international meetings to ensure she provides her patients with up to date, evidence-based care. She is a member of multiple national and international societies (Australian Diabetes Society, Endocrine Society of Australia, Australian Diabetes in Pregnancy Society, Australian and New Zealand Bone and Mineral Society and the Endocrine Society of America).

Dr Shrosbree has ongoing research at the Garvan Institute of Medical Research and the Boden Institute of Obesity, Nutrition, Exercise and Eating Disorders looking at the aetiology and management of amenorrhoea and osteoporosis in the context of anorexia nervosa. She has published her research in peer-reviewed journals and presented her findings at national conferences.


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Dr Joel Lasschuit

Endocrinologist BMedSc, MBBS (Hons), FRACP

Dr Joel Lasschuit is a Staff Specialist in the Department of Endocrinology at St Vincent’s Hospital Sydney. He holds Honorary appointments at Blacktown, Nepean, Prince of Wales, St George and Westmead Hospitals for the purpose of research while undertaking a PhD at the Garvan Institute of Medical Research. He is a Conjoint Lecturer at the University of New South Wales.

Dr Lasschuit completed a Bachelor of Medical Science and Bachelor of Medicine and Surgery (Honours) at the University of Sydney. He worked as a junior medical officer at Liverpool Hospital before entering physician training at St Vincent’s Hospital Sydney.

Endocrinology specialist training was completed between St Vincent’s Hospital Sydney and Royal Prince Alfred Hospital, and fellowship to the Royal Australasian College of Physicians (RACP) was awarded in 2017. He has been involved in Physician Training since 2015 and is now an examiner for the RACP.

Dr Lasschuit has a keen interest in diabetes-related foot conditions, in particular a rare complication called Charcot foot. He is currently coordinating a novel randomised clinical trial for patients with Charcot foot across nine public teaching hospitals. The details for this trial can be seen at https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=373116. He continues to present his work at national conferences and meetings.

Together with Dr Katherine Tonks he leads the High Risk Foot Service at St Vincent’s Hospital Sydney. He is also involved with the accreditation of High Risk Foot Services via the National Association of Diabetes Centres.

Additional areas of interest include wholistic treatment of diabetes, thyroid conditions and general endocrinology. He attends conferences in diabetes and endocrinology annually to keep up to date with best evidence-based practice.


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Dr Wendy Bryant

Credentialled Diabetes Educator BAppSc, RN, CDE

Wendy Bryant has worked as a Crendentialled Diabetes Educator (CDE) for over 21 years in both the public and private health sector. Wendy has developed knowledge and skills in providing assistance to people with diabetes in developing self-management skills to aid the prevention of diabetes related health complications. She develops an individuals’ self-empowerment by focusing on their needs and providing knowledge, motivation and support.

Wendy has extensive knowledge in the areas of Type 1 diabetes, insulin pump therapy and in the use of Continuous Glucose Monitoring Systems. Wendy provides support to those with type 2 diabetes on insulin and/or oral medications and women with Gestational Diabetes.

Wendy completed a Bachelor of Applied Science in 1998, and in 1999 completed A Graduate Diploma in Diabetes Education and Management through Curtin University. Since that time she has completed a course to become a Certified Insulin Pump Trainer. She has completed further training in Continuous Glucose Monitoring and bolus calculator meters.

Wendy is a member of the Advisory Committee for the University of Technology, Sydney for the Graduate certificate in Diabetes Management and Education. Additionally, Wendy provides education sessions to other health care professionals and provides support and education for carers of people with diabetes.

Consultations:
  • Tue to Fri

    North Sydney rooms

  • Virtual Clinic

    via Skype teleconference


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Ms Cheryl Lum

Accredited Practising Dietitian BNutrDiet(Hons), APD, AN

Cheryl Lum is an Accredited Practising Dietitian who graduated from the University of Newcastle, NSW, with a Bachelor Degree in Nutrition and Dietetics (Honours).

Cheryl has first-hand experience with diabetes, which has driven her passion in the area of diabetes and cardiac management within the private practice and research settings.

Cheryl’s specialities and interests include working with individuals with endocrine disorders and diabetes (Type 1, Type 2 and Gestational), heart health, weight management and gastrointestinal disorders. She is also an Accredited Optifast Healthcare Professional. To read more about our Optifast program click here [link coming soon].

When it comes to nutrition, Cheryl does not believe in a one-size-fits-all approach.

She works with her clients to provide the best personalised care and support to achieve their health and nutrition goals. Tackling the heart of the issue using the best methods available, she builds her clients’ nutrition skills and knowledge to enable them to make informed choices amidst all the conflicting information.

Consultations:
  • Mon and Fri

    North Sydney rooms

  • Virtual Clinic

    via Skype teleconference


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Ms Christine Poon

Accredited Practising Dietitian BHlthSc (NutrDiet), APD, AN

Christine is an Accredited Practising Dietitian (APD) who graduated from The University of Newcastle, NSW, with a Bachelor of Health Science (Nutrition and Dietetics) degree in 2001.

Christine spent 12 years working as a Senior Clinical Dietitian at Royal North Shore Hospital, and joined Sydney Endocrinology in 2014. She has extensive experience in Diabetes, Cardiology, General Surgery and Orthopaedics. She developed particular expertise working closely with oncology/bone marrow transplant, head and neck surgery, and burns patients to optimise their nutrition during and after their hospitalisation.

She authored an article entitled “Nutritional issues and body weight in long term survivors of allogeneic blood and marrow transplant in NSW“ published in Supportive Care in Cancer Journal.

Consultations:
  • Wed

    North Sydney rooms


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Sarah Lam

Clinical Psychologist BSc (Psychol) Hons M (Psychol) Clin

With over 20 years of clinical experience, Sarah Lam can help you manage your diabetes in a way that is positive and empowering.

She worked for more than 10 years at the Diabetes Education Centre at the Royal North Shore Hospital, Sydney, where she was Senior Clinical Psychologist. This experience has given her a high level of insight into the issues that can arise and how to resolve them. She has also worked with people with anxiety, depression, phobias, eating disorders, pre or post natal mood disorders, psychosis, with university students, and with people with obesity.


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Dr Nele Leenders

General Practitioner MD M Fam Med

Dr Nele Leenders will be joining the team in April 2019.

She has special interests in pituitary diseases and sports endocrinology, particularly in people with Type 1 Diabetes.


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Josephine Vigier

Medical Secretary, Executive Assistant BMedSc

Josephine is your first point of contact at Sydney Endocrinology. Her background makes her very qualified to help you.

Josephine has completed a Bachelor of Medical Science. She has a background is alternative health, having graduated from Nature Care College in 2006 as a Remedial massage therapist and fully qualified Aromatherapist.

Aromatherapy took her to France were she extended her studies into aromatic medicine. She learnt how to use the essential oils as medicine, not only applying them topically but also ingesting and using the oils safely with all different diseases and ailments.