Our Team

Dr. Ryan Craig serves as Chair of the Clinical Advisory Board and a director of the PEHA Board, and brings over a decade of leadership experience in emergency and medical services. Currently, the Director of Medical Services at South Metropolitan Health Service in Mandurah, where Dr Craig oversees clinical governance and service delivery. Previously, he held senior roles at Ramsay Health Care, including Director of Emergency Services and Emergency Medicine Specialist. Dr. Craig is known for advancing clinical excellence, operational efficiency, and innovation across both public and private healthcare sectors in Australia.

Philip is a founding PEHA Director and has clinical oversight for all PEHA sites. He is also the Deputy Chair of the Private Practice Section for the Australasian College of Emergency Medicine.  Philip is a member of the PEHA Clinical Advisory Committee and is also a director of the PEHA Board. With more than 20 years of clinical experience in a wide range of medical settings, he is a capable and trustworthy leader and physician. Philip studied medicine and surgery as an undergraduate at James Cook University and worked at several public-sector sites across metropolitan, regional, rural, and remote Queensland before moving to Western Australia to undertake his fellowship at Royal Perth Hospital, a centre for excellence in both trauma and medical research.

Associate Professor Greg Treston is an experienced Emergency Specialist who has worked extensively in public and private Emergency Medicine across Australia. As a specialist in Rural and Remote medicine, he has also worked at isolated rural health centres in both Australia and around the world. He has a strong interest in practical, clinical research. He has authored or co-authored Emergency Medicine research papers for over 20 years, as well as numerous presentations at local, national, and international Emergency Medicine and Anaesthetic conferences. As Director of Emergency Medicine across a number of sites, he has driven improvement in Emergency Medicine performance metrics to facilitate safer, more timely patient management, facilitating better access to care for patients.

Dr. Yousif is an experienced Senior Consultant of eighteen years, with a focus on Emergency Medicine & Trauma, Adults and Paediatrics. Having worked and studied in both Australia and New Zealand, he is a fellow of the Royal Australasian College for Emergency Medicine. He holds full vocational registration with both AHPRA and NZMC. Dr. Yousif has published several original research papers with the Emergency Medicine Australasia Journal and the British Medical Journal. He is also a supervisor and instructor of Emergency Medicine Diploma & Certificate candidates for the ACEM College. Dr. Yousif provides oversight to emergency departments, including supervising junior staff, liaising with various medical and surgical specialities, bed managers, chief executives, and ambulance officers and paramedics.

Emeka is a senior staff specialist in Emergency Medicine with over 20 years of experience, including 12 years as a staff specialist. Emeka's career has encompassed both clinical excellence and leadership in emergency services. Throughout his career, Emeka has held key leadership positions, including Director for Emergency Medicine Training, Local Work-Based Coordinator, and Senior Clinical Director for Emergency Services on the Fraser Coast. During his time at Fraser Coast, Emeka was instrumental in establishing a unique Clinical Decision Unit under the governance of the Emergency Department, which enhanced patient flow and quality of care. I have a special interest in clinical education, trauma, and critical care.

Dr Audra Gedmintas is an experienced Emergency Physician with a strong background in the hospital and healthcare industry. Currently serving as Site Director at Mater Private Hospital South Brisbane's Emergency Department, Dr Gedmintas brings a wealth of expertise in clinical leadership, emergency medicine, and medical education.

A graduate of Imperial College London, Dr Audra Gedmintas has cultivated a robust skill set across emergency care, collaborative practice with physicians, and hospital operations. With a demonstrated commitment to high-quality, patient-centred care, Dr Gedmintas plays a pivotal role in both frontline service delivery and strategic department management.

Dr Nnaemeka Egbuonu is an experienced Emergency Physician with a strong background in the hospital and healthcare industry. Currently serving as Deputy Site Director at Mater Private Hospital South Brisbane's Emergency Department, Dr Nnaemeka brings a wealth of expertise and commitment to high-quality, patient-centred care.

David oversees the clinical management of Hobart Private Hospital ED, providing patient care and ensuring a high standard of clinical care and patient satisfaction across the site. David has more than 20 years of emergency department experience and has been active in teaching, research, and clinical leadership in the public and private sectors. He is passionate about emergency department systems and applying the latest research to provide an exceptional patient experience. When not working, David divides his time between his wife and children, 26 animals of all shapes and sizes, and making wooden furniture.                    I strive to provide bespoke, patient-centred care to everyone we see in the emergency department.  

Dr Romesh Singam is a Fellow of the Australasian College of Emergency Medicine (FACEM).  He is also the Director of Emergency Medicine (DEM) and Medical Director for Safety and Quality at Hollywood Private Hospital in Perth. His previous roles include DEM at Auburn Hospital and Senior Staff Specialist at Westmead Hospital in Sydney, as well as six years of service with the National Health Service in the United Kingdom.

Dr Singam is an accredited Surveyor for the Australian Council on Healthcare and for the Rainbow Tick standards. Romesh has a special interest in Clinical Governance and has completed the AFRACMA programme by the Royal Australasian College of Medical Administrators and the Executive Patient Safety course by the International Health Improvement group in Boston, Massachusetts and still practises clinically each week at Hollywood Private Hospital Emergency Department.

As a member of PEHA’s Clinical Advisory Board, Dr Singam provides expert guidance on clinical governance, patient safety, and service excellence.

Dr. Muhammad Umer Ihsan, MBBS, MD, FACEM, CCPU, AFRACMA, is the Site Director at the Mater Private Hospital Rockhampton Emergency Care Centre. With over 17 years of clinical and academic experience across Pakistan, the UK, USA, and Australia, he is a certified emergency physician and educator with a special focus on ultrasound and simulation-based training. He has held leadership roles in emergency medicine education, developed curricula, and authored training tools aligned with ACEM standards. Dr. Ihsan is also an ultrasound fellowship supervisor and a pioneer in medical simulation software development aimed at enhancing clinical decision-making and education.

Dr John Groemer is a member of PEHA’s Clinical Advisory Board and also sees patients as a GP liaison across PEHA sites. Dr Groemer has over 25 years of medical experience and provided General Practice services to the Australian Department of Defence for 15 years. Dr Groemer has extensive teaching and training experience, including supervising International Medical graduates, training registrars, and implementing educational programs for medical staff.