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Cardiology - New • Oracle Healthcare

Welcome to Oracle Cardiology

Oracle Cardiology provides comprehensive and compassionate care for patients with cardiac concerns in a state-of-the-art facility on Sydney’s lower North Shore

The importance of cardiac care

The heart is a vital organ so any concerns about its function should be taken seriously. Stroke, heart and blood vessel disease are the leading cause of early death in Australia, accounting for one in four deaths.

Knowledge is power, though. That’s why we take a proactive approach to preventing, identifying and treating cardiovascular diseases.

Diagnostic Services

Available Procedures

Introducing our cardiologists

Oracle Cardiology boasts a skilled team of general and interventional cardiologists who provide timely, high-quality care, build a strong rapport with their patients and communicate fully and promptly with referring GPs.

Ekmejian

Dr Avedis Assadour Ekmejian

MBBS, MSc, FRACP, FCSANZ, PhD candidate – final year)

General and Interventional Cardiologist

Dr Avedis Ekmejian is a general and interventional (procedural) cardiologist, who prides himself on evidence-based and compassionate care for his patients.

Vickers

Dr Dominic Vickers

BMed (Dist), BSc(Med)Hons, MD (Dist), MPH (Excellence), FRACP

Consultant cardiologist

Dr Dominic Vickers completed Advanced Cardiology training at the Prince of Wales, Port Macquarie and Sutherland Hospitals after graduating Medicine with Distinction and completing an extra Honours research degree from the University of New South Wales.

Miyashita

Dr Masami Miyashita

MBBS (Hons) FRACP, FCSANZ

General and Interventional Cardiologist

Dr Masami Miyashita graduated from University of NSW and completed 4 years cardiology training in Canberra, Royal North Shore Hospital and Interventional fellowship at StGeorge Hospital in Sydney.

Quirk

Dr Christopher Quirk

BA HON Oxon, MA Oxon, MBBS Honors, MRCP, FRACP, DDU

Consultant cardiologist

Dr Chris Quirk has been a clinical cardiologist since 1994, working in both the public and private sectors. He is now our onsite cardiologist at Oracle Healthcare. 

Advanced Technology

The Oracle Cardiology team uses the latest technology to assess cardiac function. Exercise tests, echocardiograms, remote monitoring devices and good, old-fashioned blood pressure tests can tell us a great deal about how the heart is performing.

That data not only guides our doctors, it empowers our patients. Combining objective data with expert insights enables us to devise a personalised care plan to treat existing cardiac conditions and reduce the risk of future ones.

Respect for your time

Our Cardiology team understands that your time is precious. We’re proud to promote that 99% of our appointments run on schedule, ensuring you are seen at your booked time, with minimal waiting. We understand firsthand how frustrating delays can be, which is why we prioritise efficiency without compromising on quality care.

Unlike many practices, we rarely have a waiting list. We allocate time for urgent cases, ensuring those in need receive same-day appointments whenever possible. This proactive approach helps prevent unnecessary emergency department visits, providing timely care when it matters most.

Next steps

For patients

All patients require a referral to see a cardiologist.

If you already have a current referral, please book an appointment. If you do not, please see your GP and ask to be referred to Oracle Cardiology.

For referring doctors

We deliver exceptional clinical care, a positive patient experience and prompt reports to referring doctors.

With same-day appointments often available, we encourage you to refer your patients to Oracle Cardiology.

Dr Avedis Assadour Ekmejian

(MBBS, MSc, FRACP, FCSANZ, PhD candidate – final year).

General and Interventional Cardiologist

Dr Avedis Ekmejian is a general and interventional (procedural) cardiologist, who prides himself on evidence-based and compassionate care for his patients.

His post-graduate training has been across multiple tertiary hospitals in NSW, including sub-specialist training in interventional cardiology at Royal North Shore Hospital over a 2-year period.

Areas of expertise:

  • Coronary artery disease
  • Chest pain assessment
  • Preventive care
  • Interventional cardiology procedures to treat severe cardiac disease.

Areas of expertise:

  • Royal North Shore Hospital (public)
  • North Shore Private Hospital (private)

In addition to his medical degree, Dr Ekmejian holds a Master of Science from the University of Edinburgh, and is currently completing a PhD through the University of Sydney, supervised by Professor Ravinay Bhindi and Dr Michael Ward. This enables him to continue to improve the clinical care he provides his patients.

Dr Ekmejian:

  • Was a finalist in the ANZET Early Career Research Prize, Australia’s major conference for Interventional Cardiology
  • Sits on NSLHD’s Research Ethics Committee
  • Has authored multiple peer-reviewed publications in the field of interventional cardiology
  • Is a regular reviewer for other high-impact cardiology journals.
  • Lectures at the University of Sydney and teaches procedural and clinical skills to cardiology trainees at Royal North Shore Hospital
  • Is a co-director of the HEART course.

Dr Dominic Vickers

BMed (Dist), BSc(Med)Hons, MD (Dist), MPH (Excellence), FRACP

Consultant cardiologist

Dr Dominic Vickers completed Advanced Cardiology training at the Prince of Wales, Port Macquarie and Sutherland Hospitals after graduating Medicine with Distinction and completing an extra Honours research degree from the University of New South Wales.

Dr Vickers is also interested in developing technologies and how these can be utilised to improve patient outcomes achieving a Master of Public Health at the University of New South Wales. He has published his research nationally and internationally.

Areas of expertise:

  • CT coronary angiograms
  • Cardiac imaging
  • Preventive cardiology
  • Cardio-oncology

Admission rights:

Teaching:

  • Conjoint associate lecturer at the University of New South Wales

Dr Masami Miyashita

MBBS (Hons) FRACP, FCSANZ

General and Interventional Cardiologist

Dr Masami Miyashita was a senior partner in group cardiology practice on Sydney’s Northern Beaches for 27 years before joining Oracle Healthcare Cardiology in 2024.

After graduating from the University of NSW, Dr Miyashita completed 4 years of cardiology training in Canberra and at Sydney’s Royal North Shore Hospital before completing his interventional fellowship at St George Hospital.

Areas of expertise:

  • Interventional cardiology
  • Comprehensive non-invasive cardiac investigations, including
    • Exercise stress testing
    • Echocardiography, including transthoracic, transoesophageal, and stress echocardiograms.
    • Holter monitors
  • Admission and procedural rights:
  • Sydney Adventist Hospital (SAN)
  • Northern Beaches Hospital

Languages:

  • English
  • Japanese

Hobbies:

  • Kayaking Sydney’s beautiful waterways with friends.

Dr Christopher Quirk

BA HON Oxon, MA Oxon, MBBS Honors, MRCP, FRACP, DDU

Consultant cardiologist

After graduating from Oxford University, Dr Chris Quirk completed his clinical studies at London’s prestigious St Thomas Hospital.

Returning to Australia, Dr Quirk completed his cardiology training at Sydney’s Royal Prince Alfred Hospital, followed by two years of research at St Vincent’s Hospital, Sydney.

Dr Quirk ran a private practice for 30 years and is now our onsite cardiologist at Oracle.

Areas of expertise:

  • All aspects of general cardiology
  • Preventive cardiology with a focus on exercise to reduce cardiac risk
  • Coronary angiography
  • Echocardiography
  • Pacemaker/defibrillator implantations.

Admission and procedural rights:

  • Sydney Adventist Hospital (SAN)
  • Royal North Shore Hospital
  • North Shore Private Hospital

Hobbies:

  • Surf skiing
  • Kayaking
  • Cycling
  • Sailing
    • Sydney-Hobart competitor on many occasions
    • Qualified Yacht Master
    • Celestial Navigation instructor, teaching on Sydney Harbour.