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Due to a high volume of incoming calls to the rooms, for new patients wishing to book an appointment with one of our practitioners please email your doctor’s referral letter and your mobile phone number to:


Providing high quality care
and medical services to the local community. 


We are a team of medical specialists with two clinics operating within the heart of the Macarthur Region, Sydney. Our specialist team includes  Allergy/Immunology and Endocrinology.

SouthWest Medical Specialists are driven to provide high quality care and medical services to the local community. 

Our Team

Meet Our Specialists

Our Specialist


Brad Frankum.jpg

Prof Brad Frankum

Professor Brad Frankum is a Consultant Immunologist and Allergy Specialist. 

He has expertise and interest in managing a range of immunological problems from autoimmune disease to allergies.


A/Prof Karuna Keat

Conjoint Associate Professor

Karuna Keat is a Clinical Immunologist and Allergist. He has expertise in the diagnosis and management of immune mediated disorders and allergies.

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Dr Chau Tran

Dr Chau Tran is an endocrinologist – a specialist in hormones and their related disorders. He has an interest in diabetes, osteoporosis & bone/calcium metabolism, weight management, PCOS,  reproductive endocrinology, hormonal-related causes of hypertension and hair loss, as well disorders/cancers affecting the thyroid, parathyroid, pituitary, adrenals.

Our Location

Gregory Hills Clinic 

The Hub

Suite 1108, Level 1, 31A Lasso Road

Gregory Hills, NSW 2557

Opening Hours 

| Mon - Thur  9:00AM - 5:00PM
| Friday - 9:00AM -4:00PM

| Sat - Sun: Closed


Resources and Updates

This is where we share the latest updates, supportive resources and expert insights from our team and community. 

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