Mark O'Brien

Healthcare CEO | Specialist in M&A, Turnarounds & High-Growth Environments | Thought Leader | Building Scalable, People-Centric Organisations

Melbourne, Victoria, Australia

About

Experienced Healthcare Executive, with proven results driving growth, operational excellence and stakeholder engagement. I have a demonstrated history of transforming organisations through turnarounds, and major growth programs in both private equity and publicly listed companies.

Experience

  • Chief Executive Officer at Prestige Inhome Care
    Nov 2025 - Present · 8 mos

  • Impression Dental Group (Melbourne, Victoria, Australia)
    • Chief Executive Officer
      Mar 2021 - Nov 2025 · 4 yrs 9 mos

    • Chief Operating Officer
      Mar 2021 - Jul 2022 · 1 yr 5 mos

      Through our growing network of brands (including our foundation brand Totally Smiles), we are a group of industry professionals committed to delivering exceptional patient outcomes and growing dental practices. Through our unique practitioner partnership model you remain actively involved in the clinic and benefit from a range of industry-leading support functions such as recruitment, payroll, marketing, IT, procurement, and finance to support individual clinical skills growth and commercial growth. All up, we’re a network dedicated to your ongoing success.

  • Chief Operating Officer - Totally Smiles (An Impression Dental Group Brand) at Totally Smiles Dental Group
    Mar 2021 - Feb 2022 · 1 yr

  • Chief Operating Officer at Smiles Inclusive Limited
    Jan 2020 - Mar 2021 · 1 yr 3 mos

  • Junior Adventures Group (3 yrs 1 mo)
    • General Manager
      Jan 2017 - Jan 2020 · 3 yrs 1 mo

    • General Manager
      Jan 2017 - Feb 2019 · 2 yrs 2 mos

      Junior Adventures Group (JAG) operates OSHClub and Helping Hands Network. We provide Outside School Hours’ Care (OSHC) services to over 400 primary schools across Australia. This includes before and after school care, holiday programs and associated management services to Government, Independent and Catholic primary schools. The business focuses on providing the highest quality programs in the market, which is supported by industry leading Quality ratings as assessed by the independent regulator, ACECQA. We continue to pioneer the OSHC sector by building stronger communities and brighter futures for children.