Our Cardiology Team

At Oracle Healthcare, our cardiology team is dedicated to delivering expert, patient-centred cardiac care. Led by a group of highly experienced cardiologists, our team brings cutting-edge expertise in cardiovascular health.

With access to state-of-the-art 4D imaging and a multidisciplinary team, we ensure timely, precise diagnoses and personalised treatment plans. Our team is supported by three registered nurses, who provide exceptional care, ensuring a seamless experience for every patient.

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.

Registered Nurses

Emiko Kawamoto

Registered Nurse

Eva Situ

Registered Nurse

Chelsee Kubiak

Registered Nurse

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:

  • North Shore Public Hospital

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:

  • Sydney Adventist Hospital (SAN)
  • Eastern Heart Clinic in Randwick

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
  • North Shore Public Hospital

Languages:

  • English
  • Japanese

Hobbies:

  • Kayaking Sydney’s beautiful waterways with friends.