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Our Doctors

Dr Ben Costello

Ben (Dr Costello) studied chemical engineering at Melbourne University before transferring into Medicine in 2003. He graduated from Melbourne University in 2007 and was a resident at St Vincent’s Hospital. He trained as a Cardiologist at the Royal Hobart Hospital, St Vincent’s Hospital, and Western Hospital, before completing a fellowship in Non-Invasive cardiac imaging at The Alfred in 2014. This fellowship involved training in echo and stress echocardiography, cardiac CT and cardiac MRI.Ben is currently engaged in research at the Baker IDI Heart and Diabetes Institute, investigating the role of Cardiac MRI in assessing the relationship between fibrosis (scarring) of the heart muscle and blood flow, with a particular focus on the effect of cancer therapies on the heart. Ben is a Visiting Cardiologist at the Alfred Hospital and Alice Springs Hospital.

Dr Nay Htun

Dr Nay Htun is a general and interventional cardiologist with extensive experience in structural heart and coronary interventions. His cardiology training was at the Alfred Hospital, Melbourne, after which he spent two dedicated years at St Paul’s Hospital, Vancouver, Canada which is a premiere centre for complex coronary and structural heart interventions under the mentorship of Professor John Webb, one of the world leaders in structural heart interventions including transcatheter aortic valve implantation (TAVI).

His PhD was awarded by Monash University for his research focusing on detecting vulnerable atherosclerotic plaques which were at high risk of progression to heart attacks and strokes. His research was presented in the Ralph Reader Prize Section at the Annual Scientific Meeting of Cardiac Society of Australia and New Zealand as a finalist. His work was published in multiple peer-reviewed cardiology and science journals. He is also a senior lecturer at Monash University.

Since his return to Melbourne, Dr Htun has been practising as a structural heart and coronary interventional cardiologist in both public and private settings. He sees adult patients with all aspects of cardiology issues and performs the following procedures (Coronary angiogram and Stenting, PFO/ASD closure, Transcatheter aortic valve implantation [TAVI], Percutaneous mitral valve interventions, LAA occlusion, Alcohol septal ablation, Right heart catheterisation, etc). He is an accredited TAVI operator at Alfred Hospital and Cabrini Hospital. He has admitting rights to Alfred Hospital and Frankston Hospital for public patients and Cabrini Hospital and Peninsula Private Hospital for private patients.

Dr Lisa Lefkovits

Dr Lisa Lefkovits is a clinical cardiologist who specialises in non-Invasive imaging and general cardiology.

Lisa trained in internal medicine and subsequently cardiology at The Alfred Hospital in Melbourne. She went on to complete a Fellowship in non-invasive imaging at the Alfred Hospital gaining her qualifications in echocardiography (trans-thoracic and trans-oesophageal), stress echo, cardiac CT and cardiac MRI. During her Fellowship, she was involved in a number of research projects associated with cardiac MRI and has presented her research both nationally and at international meetings.

She is committed to public and private cardiology and provides care in both inpatient and outpatient settings. She has been on staff at Alfred Hospital and Frankston Hospital since 2010 as a clinical cardiologist and echocardiographer. Her private practice is based at Cabrini Health.

Lisa is readily available for GP and specialist referrals related to all aspects of cardiology and manages patients with an extensive range of cardiac problems, including coronary artery disease, valvular heart disease, heart failure, hypertension, cardiac arrhythmias, hyperlipidaemia and preventative cardiology.

Lisa conducts herself in a warm, personable and caring manner, works well with her patients and referring doctors and strives to provide personalised and appropriate care of the highest quality.

Dr Ian Matthews

Ian (Dr Matthews) completed his medical degree at the University of Queensland in 2008 after completing an undergraduate degree in Biomedical Science. After completing his internship at the Royal Brisbane and Women’s Hospital in 2009 he moved back to Melbourne and completed his residence and registrar years at St Vincent’s Hospital. He completed his cardiology training at Monash Medical Centre, St Vincent’s Hospital and Ballarat Base Hospital before commencing a two-year fellowship in cardiac implantable electronic devices at St Vincent’s in 2017 and 2018, implanting pacemakers, defibrillators, and loop recorders as well as performing cardiac resynchronization therapy procedures.

Dr Shane Nanayakkara

Shane grew up in regional Australia, studied medicine at Monash University, and completed advanced physician training in Cardiology at The Alfred Hospital. After achieving his PhD in heart failure, he completed a fellowship in coronary intervention, and is currently completing a further fellowship in transcatheter structural heart interventions, including a keyhole approach to valve replacement and repair. He performs coronary angiography, coronary stenting, and advanced interventional techniques. He is passionate about both face to face care and telemedicine, particularly with his rural background.

Shane’s research focused on heart failure with preserved ejection fraction, with his work winning the National Heart Failure Prize from the Cardiac Society of Australia and New Zealand, and he was awarded the Mollie Holman Medal for best thesis from the Monash University medical faculty. Currently, his research is focused on the role of artificial intelligence in cardiology, with projects in cardiac arrest, voice analysis, and image interpretation. He has created a patient focused smartphone app for the management of heart failure. He has over 50 publications in international journals and has authored several book chapters.

Shane’s other interests include a passion for education, having run several teaching courses and currently teaches medical students at Monash University. Shane was awarded the Sir John Monash Mentor of the Year for his involvement as a mentor to students in training. In addition, he has supervised several junior doctors through research papers and higher order degrees.

Dr Sandeep Prabhu (Sunny)

Dr Sandeep Prabhu (Sunny) was born in Sydney and has lived in Melbourne for over 20 years. Sunny graduated from Medicine and Law from Monash University in 2005 and trained in cardiology at the Alfred,
Royal Melbourne and Frankston Hospitals. He undertook sub-speciality training in electrophysiology (rhythm disorders) and device implantation at the Alfred and Royal Melbourne hospitals, and was an overseas fellow at St Bartholomew’s Hospital, London, Europe’s
largest arrhythmia centre.

Sunny completed a PhD focussing on atrial fibrillation and heart failure which received numerous accolades, including a nomination for the Victorian Premier’s Award for Health and Medical Research and
the prestigious Ralph Reader Young Investigator award. This centrepiece clinical trial is now incorporated into national and international treatment guidelines. He is widely published with currently 40 peer-reviewed publications and regularly presents at both
local and international conferences. He remains an active researcher supported by the National Health and Medical Research Council and Heart Foundation Post-Doctoral Fellowships at the Baker Heart and Diabetes Research Institute.

Sunny is an emerging leader in the field of electrophysiology and is dedicated to providing comprehensive management for all rhythm disorders. In addition to pacemaker and defibrillator implantation,
he performs ablation procedures for atrial fibrillation, SVT and ventricular tachycardia, and has a particular interest in the latest mapping technologies and X-ray-free or minimal radiation procedures. He has an appointment at the Alfred Hospital as an electrophysiologist.

Sunny is married with two young children. When he is not working, his hobbies include travelling, spending time with his family, distance running, tennis and dabbling in carpentry and drawing.

Dr Roshan Prakash

Dr Prakash is a Consultant Interventional and General Cardiologist who works between The Alfred, Caulfield Hospital, LaTrobe Regional Hospital and Frankston Hospital.

He obtained his medical degree at University of Malaya, Kuala Lumpur, Malaysia in 2003 and subsequently worked with the Malaysian Government before moving to Australia in 2008. He undertook his Basic Physician Training at Flinders Medical Centre, Adelaide and commenced advance training in Cardiology at the same institution (2010-2012). Following that, he undertook a year of clinical research in valvular heart disease. He went on to subspecialty training in Interventional Cardiology at the Royal Adelaide Hospital (2014) and moved to Vancouver General Hospital (2015-2017) for additional training in complex coronary intervention, (CTO, left main, vein graft PCI, mechanical-support assisted PCI, structural intervention (TAVI/ASD/PFO/LAA closure).

He is also an accredited Cardiac CT specialist and received training in Monash Heart, Vancouver General Hospital, Canada and Harbour-UCLA Medical Centre in Los Angeles, United States.

Dr Prakash has been involved in clinical research in a broad range of areas, including spontaneous coronary artery dissection (SCAD), transcatheter aortic valve implantation (TAVI), left atrial appendage closure (LAA closure) and valvular heart disease. He has published his works in various medical journals.

He was awarded the prestigious CSANZ/ANZET Fellows Prize in 2014 and the Best Cardiology Subspecialty Fellow Teachers Award from the University of British Columbia, Canada in 2016.