Executive Personnel

Our experienced team of Executive Personnel ensure the smooth running of all aspects of our healthcare service and facilities.

Covering all financial management and administrative procedures, Timboon and District Healthcare Service relies on our:

  • Chief Executive Officer
  • Director of Clinical Services
  • Director of Community Health
  • Finance Manager
  • Human Resources Manager
  • Support Services Manager
  • Regional Director of Medical Services


Please contact us to find out more about the history of Timboon hospital, or make enquiries about our services, primary healthcare or home and community care programs.

Gary Castledine

Chief Executive Officer

BAppSc BA DipAmbParamedic MEthicsLeg

Gary has spent over two decades in the healthcare sector, most recently as the Integrity Officer for Ambulance Victoria (AV). In fact, Gary was employed for about 25 years at AV and prior to this, was a police officer for 3 years.

During his time as a paramedic based in Timboon, Gary was involved in the development of an emergency action plan for the town in 2009/2010, following the Black Saturday Fires. He was also one of the first occupants of the then new ambulance station which opened in June 2010.

In addition to Gary’s experience in the health industry, and devotion to public service, he is a firm believer in continuous improvement and has continued to study throughout his working life. However, even with all the work and study, Gary makes sure he spends as much time as possible with his wife Melissa, also a paramedic, and their three children.

Larissa Barclay

Director of Clinical Services

Larissa has over 17 years’ experience in healthcare, working in metropolitan and most recently spending 6 years at Southwest Healthcare in Warrnambool. With 10 years’ experience in senior nursing and midwifery leadership, she has undertaken various roles across the healthcare continuum: Medical and palliative care, surgical, emergency, community health, with a significant portion in maternity services.

Growing up on a dairy farm on the Murray River, Larissa traded the river for the ocean, moving to Warrnambool in 2004 for university. When not at work, she enjoys keeping active and spending time with her husband Scott and their four children.

Tanya Wines

Director of Community Health


Tanya is an experienced health professional who has spent the majority of her career working as a Medical Scientist. Over the past 10 years she has established herself in leadership roles holding various management positions in private industry. Tanya believes in values-driven leadership, engaging and building relationships on the foundations of trust and respect.

Tanya has spent many years working in rural and remote Australia and has a great understanding of community engagement and consumer directed care. Tanya believes that the Community Health Team plays a significant role in maintaining and improving the health and wellbeing of our community. Tanya holds a Bachelor of Applied Science – Human Biology and has recently returned to the district with her husband and two sons after spending 12 years working interstate.

Andrew Maskell

Finance Manager


Born and raised in Timboon, Andrew completed his university studies while working at the local IGA for 7 years and joined the TDHS Finance Team in 2016. He continued to develop his skills, while completing his Bachelor’s degree in Commerce and Certified Practising Accountant (CPA).

Andrew and his wife Amber settled in Warrnambool and enjoy going away on weekends when their busy working schedule allows.

Krystal Edwards

Human Resources Manager

Kylie Chambers

Support Services Manager

Didir Imran

Regional Director of Medical Services


With over 10 years of clinical and hospital administration experience, Didir has worked across five states and eight health services after graduating from the University of Adelaide (MBBS). Didir is a huge advocate for health informatics and he was most recently the Deputy Chief Informatics Officer (CMIO) at Western Health, where he assisted with clinician engagement and in the implementation and design of a multi-million dollar electronic medical record (EMR) system.


A firm believer of life-long learning, Didir is currently undertaking a Masters of Health Services degree through Monash University. He is also a trainee with the Royal Australasian College of Medical Administrators (RACMA). As the inaugural District Director of Medical Administration (DDMA) for the Polwarth region, Didir has strategic and operational oversight of clinical governance across the region. Didir is a dedicated medical practitioner and he looks forward to assisting with the implementation of a public medical model of care at Timboon and District Healthcare Service.