Western Health is one of the largest providers of healthcare in Victoria, caring for a vibrant, diverse and rapidly growing community of almost one million people in Melbourne's western suburbs. 

Western Health manages acute public hospitals comprising Sunshine Hospital (including Joan Kirner Women's and Children's), Footscray Hospital, Williamstown Hospital, Bacchus Marsh Hospital and Melton Regional Hospital. Western Health also operates Sunbury Day Hospital, Boollam Boollam in Williamstown, Melton Health and Community Services, Bacchus Marsh Community Health Centre, Caroline Springs Community Health Centre, Grant Lodge Residential Aged Care in Bacchus Marsh, and the new Mental Health and Wellbeing Centre in Sunshine.

Western Health provides a comprehensive, integrated range of clinical services from its various sites ranging from mental health and wellbeing services, and acute tertiary services in areas of emergency medicine, intensive care, and medical and surgical services, to subacute care and onsite and virtual ambulatory clinics. Western Health's specialized services include oncology, renal, and women's health including maternity, chronic disease, geriatrics, and cardiology.

Western Health provides a combination of hospital, community-based and in-reach services to aged, adult and pediatric patients and newborn babies. Western Health also provides the primary health care service at the Dame Phyllis Frost Centre and offers drug health and addiction medicine support through its inpatient service and community Drug Health Service.