Sarah Mackenzie

Regional Operations Manager at Colosseum Dental UK Ltd (2024-07 – Present)

Lead operational and commercial performance across 21 mixed NHS and private clinics, delivering a combined £34m Total Income budget.
Manage and develop a team of 16 managers, embedding a coaching-led culture that strengthens capability and engagement.
Influenced EBITDA improvement from below 15% to over 30% within 12 months, through targeted performance plans and operational discipline.
Standardised processes across clinics, improving efficiency, compliance, and patient flow.
Maintain 100% CQC compliance across the region.
Strengthen clinician relationships to support recruitment, retention, and workforce planning.
Use KPI-driven insight to identify underperformance and execute corrective action plans.

Project Manager at Colosseum Dental UK Ltd (2022-09 – 2024)

Delivered the full Dentally PMS conversion for 80 clinics in 9 months, completing on time and within scope resulted in achieving an outstanding contribution award at the annual conference.
Instrumental in the design, build and migration of a bespoke HR platform, improving visibility of people KPIs including FTE and staffing ratios.
Delivered structured training programmes to over 1,500 colleagues, ensuring confident adoption and operational continuity.
Coordinated cross-functional teams (IT, HR, Clinical Governance, Operations) to ensure seamless implementation.
Standardised workflows post-migration, improving efficiency, appointment utilisation, and patient flow.
Reported progress to senior leadership, highlighting risks, milestones, and performance outcomes.

Integration Manager at Colosseum Dental UK Ltd (2020-09 – 2022-09)

Led the successful integration of +25 clinics into the organisation's operational framework.
Instrumental in establishing and building the organisation's first formal Integration process, creating structure, consistency, and clear operational standards where none previously existed.
Delivered structured onboarding for managers, clinicians, and support teams.
Standardised workflows across clinics, improving efficiency and operational stability.
Ensured new clinics met CQC and compliance standards from day one.
Provided hands-on operational support during the first 3–6 months to embed best practice.
Strengthened cross-functional collaboration and acted as a key liaison between clinics and regional leadership.
Used a coaching-led approach to support new managers, increasing confidence and capability during transition.

Integration Manager at Bupa Dental Care (2018 – 2020)

Supported the integration of newly acquired and transitioning clinics into Bupa's operational model.
Delivered onboarding and transition support for Practice Managers, clinicians, and administrative teams.
Standardised operational processes across clinics to improve efficiency, patient flow, and governance.
Collaborated with clinical governance teams to ensure clinics met CQC standards during transition.
Provided hands-on operational support to stabilise performance and embed best practice.
Strengthened relationships with clinicians and managers to support smooth operational adoption.

Practice Manager at Bupa Dental Care (2013 – 2018)

Increased clinic profitability to 34% and achieved 96% patient satisfaction.
Built a strong coaching and mentoring culture, improving engagement and retention.
Delivered full CQC compliance and strengthened governance frameworks.
Improved patient flow and appointment utilisation through workflow redesign.
Managed recruitment, training, and performance development for all clinic staff.

About