The ace experience

The traditional approach to specialist care is often siloed so the opportunity for cross-collaboration across specialties is often missed. This can often lead to a disjointed treatment journey where patients are left in a time-consuming cycle of bouncing between their referring GP and various specialists, with communication channels between specialists ceasing to exist.

At ace specialists, we take a more all-embracing approach to specialist treatment. We represent a body of independent medical practitioners, each with a strong reputation and wealth of experience in our chosen fields. Our collaborative method means we consider multiple avenues of treatment to enable the optimal outcome for our patients and referring doctors. We call this the ace experience.

Collaboration between specialists also leads to an enhanced level of knowledge outside our areas of expertise. Although we are individual specialists in our field, we recognise the value in learning from other disciplines to provide a better treatment outcome for our patients.

Our specialties

We’ve reimagined specialist care. As experts across a range of specialties, we apply a unique collaborative approach to treatment that enables continuity of care and a streamlined treatment journey for our patients. Discover more about our specialities and how we can help you.



Pain Medicine

Pulmonary Hypertension

The ace specialists

Our team is made up of independent specialists from a variety of disciplines.

Dr Michael Tjeuw

Dr Michael Tjeuw


Dr Sunny Randhawa


A/Prof Sumit Raniga

Image of Dr Carmella Gunasingham

Dr Carmella Gunasingam

Our practice
in Wahroonga

ace specialists (Wahroonga) Is located on Level 2 of the Parkway San Clinic building at the intersection of Fox Valley Road and The Comenarra Parkway. The complex is wheelchair accessible, with lift access to our rooms on the second floor. For more information on our location, please see our contact page.

Our practice
in Tamworth

 ace specialists (Tamworth) is located in the centre of town. You’ll find us in the HealthWISE building, which is between Centrelink and the Albert Hotel. For more information on our location, please see our contact page.


For information on how to book an appointment, please visit our contact page.