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David Waters

Chief Executive

In his role as CEO at CAA, David provides leadership for the ambulance sector across Australia, New Zealand & Papua New Guinea. He is a Registered Nurse and a graduate of the Victoria University Business School in Wellington and Darden University in Virginia.

As an experienced Chief Executive and Director, David's passion for health, education and growing the skills of the workforce has seen him work in the UK, Australia and New Zealand. David has wide senior commercial and NGO not-for-profit experience and extensive background in the management of associations and health services in the public, private and aged care sectors.

Mojca Bizjak-Mikic

General Manager

Mojca is the General Manager of The Council of Ambulance Authorities. Her degree in Political Sciences has over the last two decades seen her work across Europe, Australia and New Zealand in the policy arena, on topics ranging from international relationships, European Union representation, local municipality policies and since joining the CAA 12 years ago the health and ambulance sector.

In her role as GM she looks after HR, Sponsorship & Partnership Opportunities and oversees Marketing, Events, CAA Campaigns and Data Management that provides reporting for member services to a number of national and federal government bodies.








Dr Shohreh Majd PhD, MSc

Policy & Research Manager

With a PhD and two post-doctorates in Neuroscience, a master’s degree in Human Physiology, and two certificates in Psychology from Johns Hopkins University and University of Pennsylvania, Dr. Shohreh Majd is working as Policy and Research Manager at CAA.

Shohreh has been working as a lecturer and the head of neuronal injury and repair (NIR) laboratory at Centre for Neuroscience of Flinders University. Her research centres on the emerging field of oxidative stress due to several conditions such as cardiac arrest, stroke, aging and Alzheimer's disease with a special focus on finding therapeutic tools. Her publications have been cited over 500 times by other scientists around the world.

In her role as Policy and Research Manager, she undertakes research and analysis and review complex policy issues along with managing projects, compiling grant proposals and contributing to represent CAA in relevant committees.

Marsha Taheri

Policy & Project Assistant

Research Associate with a wealth of experience in the health sector, focusing on Health Policy Making. Proficient in ensuring quality care, Health Promotion, and Clinical Education. Marsha's published work has been cited over 300 times globally.

Marsha is responsible for researching, analysing, and reviewing policy issues within the ambulance sector. She develops reports to meet CAA requirements, aids in securing grants, conducts data analysis, and contributes to the development of key performance indicators for Australian ambulance services. Known for her creative thinking, problem-solving skills, and strong work ethic.


Tammi Parsons 

Administration Officer

Tammi Parsons is the Administration Officer at the CAA, and supports the whole team with their ongoing administrative and organisational needs.

Tammi approaches all aspects of any job with a positive, hard-working mindset, and is passionate about helping find solutions to any challenge.  She brings with her an extensive background in customer service and finance in both the Non-Profit and Corporate sectors.


Joshua McNally

Director of Partnerships and Advocacy

Josh is the Director of Partnerships and Advocacy at the CAA, with an extensive background in marketing, partnerships, and communications in both domestic and international markets and across a wide variety of industries in both the commercial and not for profit sectors. 

Josh works with out Member Services, sponsors and other organisations and associations to build and strengthen connections and relationships that sees the Australasian prehospital sector continue to excel in leadership, innovation and patient care.