The Group Executive Committee of Mediclinic and the divisional executive committees of its divisions in Switzerland, Southern Africa and the United Arab Emirates are committed to ensuring effective decision-making and strategy execution.

Dr Ronnie van der Merwe

Group Chief Executive Officer

Nationality: South African

Appointed: June 2018

Dr Van der Merwe has a strong track record of leadership and management within a large private sector healthcare organisation, including strategy, organisational development, clinical performance, adoption of technology and managing quality. He also has extensive knowledge of Mediclinic’s operations.As a qualified anaesthesiologist in private practice, Dr Van der Merwe gained extensive experience in trauma and elective anaesthesia, intensive care management, and the management of acute and chronic pain. During his involvement in the medical insurance industry, he gained expertise in healthcare data management, analytics, managed healthcare principles and reimbursement models. He established the Clinical Services, Clinical Information, Advanced Analytics, Health Information Management and central Procurement functions at Mediclinic, contributing to the growth and strategic positioning of the Group.

He joined the Company in 1999 and as Chief Clinical Officer took responsibility for various aspects of the business prior to his appointment as executive director and Group CEO of Mediclinic. He was an executive director of Mediclinic International Ltd from 2010, up to the reverse takeover of Al Noor Hospitals Group plc. He was appointed as an executive director and Group CEO of Mediclinic, with effect from 1 June 2018, and also serves as a non-executive director of Spire since 24 May 2018 under the terms of the shareholder agreement between Spire and Mediclinic.


MBChB (Stellenbosch University), DA (SA) (College of Anaesthetists of South Africa), FCA (SA) (Fellowship of the College of Anaesthetists of South Africa), Advanced Management Program (Harvard Business School).

Jurgens Myburgh

Group Chief Financial Officer

Nationality: South African

Appointed: August 2016

Mr Myburgh is a qualified chartered accountant with broad financial and accounting experience obtained during his career of over 20 years. Since joining the Group, he has emphasised the importance of capital management and allocation informed by cost of capital across the Group and driven a structured approach to growth.

After qualifying as a chartered accountant with KPMG in 2000, he joined The Standard Bank of South Africa Ltd in 2001 and was appointed as Head of Mergers and Acquisitions in 2009. Subsequently, he served as CFO at Datatec Ltd, an international ICT Group, before joining Mediclinic as Group CFO in August 2016.


BComm Hons in Accounting (University of Johannesburg), registered with the South African Institute of Chartered Accountants.

Gert Hattingh

Group Chief Governance Officer

Nationality: South African

Mr Hattingh joined Mediclinic in 1991 as Group Accountant. He served in various management positions across the Group and was appointed as Company Secretary in 2000 and Group Services Executive in 2011. Subsequent to the acquisition of Al Noor Hospitals Group plc in February 2016, he holds the position of Group Chief Governance Officer.


(Stellenbosch University), Advanced Management Program (Harvard Business School), registered with the South African Institute of Chartered Accountants.

Dr Dirk le Roux

Group Chief Information Officer

Nationality: South African

Dr Le Roux joined Mediclinic in August 2014 as the Group ICT Executive and was appointed to his current position of Group Chief Information Officer on 11 August 2014. Prior to joining Mediclinic, he served in various managerial roles, including as Managing Director of ThinkWorx Consulting, Chief Information Officer at Media24 (Pty) Ltd, General Manager of IT Strategy and Risk at Absa Bank Ltd and Head of IT at the Development Bank of Southern Africa.


DComm in Informatics (University of Pretoria), MBA cum laude (North-West University), PgDip in Data Metrics (Unisa), BEng in Civil Engineering (University of Pretoria).

Magnus Oetiker

Group Chief Strategy and Human Resources Officer

Nationality: Swiss

Mr Oetiker worked for Hirslanden in various management positions from 2000 to 2016. He served on this division’s Executive Committee from 2008 in various roles, while also taking responsibility for HR management, funder relations and strategy. During his last two years at Hirslanden, he acted asChief Strategy Officer. In 2016, he joined a family-owned company in Switzerland with interests in healthcare, real estate and catering as CEO. In February 2018, he was appointed Group Chief Strategy and Human Resources Officer.


BSc in Business Administration (Zurich University of Applied Sciences), Executive MBA (University of Zurich).

Dr René Toua

Group Chief Clinical Officer

Nationality:  South African

Dr Toua is a medical practitioner with extensive experience in private and public healthcare. She started her career in primary healthcare, established a geriatric private primary care practice and worked in emergency medicine, including at an academic trauma unit, for several years. She joined Mediclinic in 2006 and held the positions of Regional Clinical Manager, and Clinical Data and Information Manager for Mediclinic Southern Africa. Subsequently, she served as the Group General Manager: Clinical Performance. She sits on the Executive Committee and is vice Chair of the board of trustees for Remedi, the in-house medical aid scheme. She was appointed Group Chief Clinical Officer with effect from 1 July 2018.


MBChB (Stellenbosch University), MPhil in Emergency Medicine (Patient Safety and Clinical Decision Making) (University of Cape Town), PgCert in Project Management (University of Stellenbosch Business School).

Dr Tyson Welzel

Group Chief Innovation Officer

Nationality: German and South African

Before joining the Group, Dr Welzel fulfilled clinical and academic roles acquiring extensive experience in private and public healthcare. He is also a founder of the CoE in Emergency Medicine in Bern. In 2016, he joined Mediclinic, taking responsibility for clinical governance and health technology assessments, before being appointed as Group General Manager: Innovation in 2019. He subsequently joined the Group Executive Committee in October 2020 as Group Chief Innovation Officer.


MBChB (University of Cape Town), European Masters in Disaster Medicine (University of Eastern Piedmont), MMedSc in Clinical Epidemiology (Stellenbosch University), Masters in International Management (McGill University).

David Hadley

Chief Executive Officer: Mediclinic Middle East

Nationality: British

Mr Hadley joined Mediclinic in 1993 and filled various administrative roles in HR, finance, operations and hospital management before being seconded to Dubai in 2007 to oversee the opening of Mediclinic City Hospital. He was appointed as CEO of Mediclinic Middle East in 2009 and has served on the Group Executive Committee since 2011.


BComm (Unisa), MBA cum laude (University of Liverpool).

Dr Daniel Liedtke

Chief Executive Officer: Hirslanden

Nationality: Swiss

Dr Liedtke joined the Hirslanden Klinik St. Anna in Lucerne in 2001. He held various clinical and managerial positions at Hirslanden prior to his appointments as Hospital Manager of Klinik Hirslanden in 2008 and as Chief Operating Officer of the Hirslanden Group in 2015. In 2019, he was appointed as CEO.


Doctor of Business Administration (Charles Sturt University), Master of Health Administration (FHS St. Gallen), DO in Osteopathic Medicine (Swiss Conference of Cantonal Health Directors), BSc in Physiotherapy (Swiss Confederation), Certificate in Car Electronics (Federal certificate).

Koert Pretorius

Chief Executive Officer: Mediclinic Southern Africa

Nationality: South African

Mr Pretorius joined Mediclinic in 1998 as the Regional Manager for the central region of Mediclinic’s operations in Southern Africa and in 2003 took on the role of Chief Operating Officer of the Mediclinic Group. He was appointed CEO of Mediclinic Southern Africa in 2008 and served as an executive director of Mediclinic International Ltd from 2006, up to the acquisition of Al Noor Hospitals Group plc.


BCompt in Accounting Science (University of the Free State), Master of Business Leadership (Unisa).