NSW Health Pathology Executive and Leadership Team

November, 2026

Leadership Overview

NSW Health Pathology has 4 executives leading key functions including strategy, regional health administration, digital infrastructure, and operational logistics.

Committed to advancing public health outcomes, NSW Health Pathology delivers essential diagnostic and forensic services across New South Wales to ensure community safety and clinical excellence.

Leadership Roles at NSW Health Pathology

  • Chief Executive Officer - Vanessa Janissen
  • District Chief Executive Officer, The Northern NSW Local Health - Tracey Maisey
  • Chief Operating Officer - Darren Croese
  • Chief Information Officer - James Patterson
  • Vanessa Janissen - Chief Executive Officer

    Vanessa Janissen, the Chief Executive Officer at NSW Health Pathology, directs the overarching strategic vision for Australia's largest public pathology and forensic science network. Overseeing a workforce exceeding 5,000 staff, the Chief Executive Officer ensures the seamless integration of clinical services across 60 laboratories and 150 collection centers. This leadership role involves driving innovation in diagnostic research while maintaining rigorous standards for public health safety. By aligning organizational goals with the needs of healthcare professionals and patients, Vanessa Janissen fosters a culture of excellence and community support. The Chief Executive Officer manages complex stakeholder relationships, including government bodies and research institutions, to expand the reach of forensic and clinical testing. Through consistent focus on operational efficiency and patient-centered care, Janissen secures the long-term sustainability of critical diagnostic infrastructure across the entire state of New South Wales.
    Vanessa Janissen

    Tracey Maisey - District Chief Executive Officer, The Northern NSW Local Health

    Tracey Maisey, the District Chief Executive Officer, The Northern NSW Local Health at NSW Health Pathology, manages regional health administration and diagnostic service delivery across northern territories. Coordinating with clinical teams, the District Chief Executive Officer, The Northern NSW Local Health ensures that pathology services meet the specific demands of local healthcare providers and patient populations. This role involves optimizing resource allocation within regional collection centers to maintain high-quality diagnostic output. By bridging the gap between centralized laboratory operations and frontline clinical care, Tracey Maisey enhances the accessibility of Medicare-rebatable tests for the community. The District Chief Executive Officer, The Northern NSW Local Health drives initiatives that improve turnaround times for critical results, directly impacting patient wellbeing. Through strategic oversight of regional health assets, Maisey strengthens the public health framework, ensuring that diagnostic capabilities remain robust and responsive to evolving medical requirements throughout the northern region.

    Darren Croese - Chief Operating Officer

    Darren Croese, the Chief Operating Officer at NSW Health Pathology, executes the daily operational logistics necessary to maintain the functionality of 150 collection centers and extensive laboratory networks. Overseeing supply chain management and facility performance, the Chief Operating Officer ensures that diagnostic services remain available and reliable for all patients. This role involves optimizing internal processes to handle high volumes of clinical and forensic samples with precision. By coordinating with laboratory managers, Darren Croese maintains strict adherence to safety and quality benchmarks across the state. The Chief Operating Officer drives efficiency improvements that reduce costs while expanding service capacity for Medicare-rebatable testing. Through rigorous oversight of operational workflows, Croese supports the broader mission of enhancing health and wellbeing at all life stages. This leadership role requires constant monitoring of service delivery metrics to ensure that the organization meets the diverse needs of the New South Wales healthcare system.

    James Patterson - Chief Information Officer

    James Patterson, the Chief Information Officer at NSW Health Pathology, architects the digital infrastructure required to support high-volume diagnostic and forensic data processing. Overseeing the implementation of advanced laboratory information systems, the Chief Information Officer ensures secure and efficient data flow across 60 laboratories. This leadership role involves modernizing digital platforms to facilitate rapid reporting for healthcare professionals and researchers. By integrating complex diagnostic datasets, James Patterson enables data-driven decision-making that improves clinical accuracy and operational speed. The Chief Information Officer manages cybersecurity protocols to protect sensitive patient information while maintaining compliance with national health standards. Through the deployment of scalable technology solutions, Patterson supports the organization's commitment to innovation and research. This focus on digital transformation allows the Chief Information Officer to streamline workflows, ultimately enhancing the quality of care provided to patients across the entire New South Wales network.

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    Frequently Asked Questions Regarding NSW Health Pathology Top Executives and Leadership Team

    Who leads NSW Health Pathology?
    NSW Health Pathology is led by Vanessa Janissen (Chief Executive Officer), along with executives such as Tracey Maisey (District Chief Executive Officer, The Northern NSW Local Health) and Darren Croese (Chief Operating Officer).
    Who is part of NSW Health Pathology’s executive team?
    The executive team of NSW Health Pathology includes leaders such as Vanessa Janissen (Chief Executive Officer), Tracey Maisey (District Chief Executive Officer, The Northern NSW Local Health), Darren Croese (Chief Operating Officer) and other senior executives.
    How many executives does NSW Health Pathology have?
    NSW Health Pathology has 4 executives leading key business areas.
    What roles are included in NSW Health Pathology’s leadership team?
    The leadership team of NSW Health Pathology includes roles such as Chief Executive Officer, District Chief Executive Officer, The Northern NSW Local Health, Chief Operating Officer, Chief Information Officer.