Our experienced and capable Group Executive Committee has extensive industry experience and organisational knowledge.


Dr Ronnie van der Merwe

Group Chief Executive Officer

Nationality: South African

Ronnie joined Mediclinic in 1999 and served as Chief Clinical Officer before his appointment as Group Chief Executive Officer (‘CEO’) in June 2018. He was an executive director of Mediclinic International Ltd from 2010 up to the reverse takeover of Al Noor Hospitals Group plc. Ronnie has extensive knowledge of Mediclinic’s operations. He established the Clinical Services, Clinical Information, Advanced Analytics, Health Information Management and central Procurement functions at Mediclinic, driving growth.

Qualifications: 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

As a qualified chartered accountant with extensive investment banking experience, Jurgens takes a balanced approach to financial management and growth. Since joining Mediclinic as Group Chief Financial Officer (‘CFO’) in August 2016, he has driven a structured approach to capital allocation with an emphasis on free cash flow and return on investment. Previously, he served as CFO at Datatec Ltd. He qualified with KPMG and, in 2001, joined The Standard Bank of South Africa Ltd, where he was appointed as Head of Mergers and Acquisitions in 2009.

Qualifications: BCom Hons Accounting (University of Johannesburg), Stanford Executive Program (2022), registered with SAICA.

Bertrand Levrat

Bertrand Levrat

Group Chief Operating Officer

Nationality: Swiss

Bertrand joined Mediclinic Group as Group Chief Operating Officer in June 2024. Prior to his appointment, he held the position of Director General at the largest university hospital in Switzerland, Geneva University Hospital, where he was responsible for the operational management since 2013. Prior to his position at Geneva University Hospital, he held many senior leadership roles in healthcare, welfare and humanitarian aid, both in Switzerland and internationally.

Qualifications: LL.M. (University of Geneva); Certificate in Advance Studies in Strategic Leadership (University of Geneva); Officer of the French National Order of the Legion of Honour (2022).


Patrick Kammerman

Group Chief Information Officer

Nationality: Swiss

Patrick joined Mediclinic in February 2024 as Group Chief Information Officer from EF Education First, the world’s largest privately held international education company offering study abroad, language learning, cultural exchange and academic programs. Prior to EF, Patrick built and led technology organisations of various sizes at elipsLife (a former Swiss Re Group company), AXA Group, Zurich Insurance and Swiss Life. Equipped with over 15 years’ experience as a technology executive and CIO, Patrick has extensive multinational expertise across diverse industries in information technology, digital transformation and business operations.

Qualifications: MSc in HR & Change Management (University of Central Florida, US), an MSc in Electrical Engineering (Duke University, US) and, an MSc in Communication Technology (Swiss Federal Institute of Technology).


Humsha Ramgobin

Group Chief Human Resources Officer

Nationality: South African

Humsha joined our operations in Southern Africa in 2022 as Chief Human Resources Officer and was appointed as Group Chief Human Resources Officer in August 2023. She is a seasoned HR professional with over 25 years of experience, 15 of which in executive roles within the consumer goods, retail and financial services sectors. She has served in various executive roles focusing on optimising operating models and structures, creating more effective ways of working; streamlining efficiencies; centralising group functions; and creating centres of excellence.

Qualifications: BA in Social Work (University of KwaZulu-Natal), BA Honours in Industrial Organisational Psychology (Unisa), Associate Coaching Certificate (UCT Graduate School).


Dr René Toua

Group Chief Clinical Officer

Nationality: South African

René 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 our operations in Southern Africa. Subsequently, she served as the Group General Manager: Clinical Performance. She was appointed Group Chief Clinical Officer with effect from 1 July 2018.

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


Dr Tyson Welzel

Group Chief Innovation Officer

Nationality: German and South African

Before joining the Group, Tyson fulfilled clinical and academic roles, acquiring extensive experience in private and public healthcare. He is also a founder of the Centre of Expertise (‘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. 

Qualifications: 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).


Dr Daniel Liedtke

Chief Executive Officer: Hirslanden

Nationality: Swiss

Daniel 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 Zurich in 2008 and as Chief Operating Officer of our Swiss division in 2015. In January 2019, he was appointed as CEO.

Qualifications: Doctor of Business Administration (Charles Sturt University), Executive Master of Science in Health Service Administration, Osteopath DO (Swiss Conference of Cantonal Health Directors, ‘GDK’), BSc in Physiotherapy (Swiss State diploma), automotive electronics engineer (‘EFZ’, Swiss State diploma).


Greg van Wyk

Chief Executive Officer: Mediclinic Southern Africa

Nationality: South African

Greg joined Mediclinic in 2013 as Chief HR Officer for Southern Africa following many years in leadership positions across the fields of HR and strategy. Prior to Mediclinic, he served as Group HR Director at BMW South Africa, led HR and strategy at Land Bank, and held the position of Associate Director in Human Capital at Deloitte. He was appointed as CEO of our Southern Africa operations in April 2022.

Qualifications: BProc (Baccalaureus Procurationis) (University of Johannesburg), Diploma in Education (Bechet, now Edgewood).


Hein van Eck

Chief Executive Officer: Mediclinic Middle East

Nationality: South African

Hein is a healthcare actuary who joined our Southern Africa operations in 2005 from the health insurance industry to head up business development. He moved to the Middle East in 2014 and, in 2016, was appointed to the Middle East executive committee as Chief Strategy Officer. He has held many leadership positions over a healthcare career spanning more than 20 years, with local and global healthcare experience in the fields of strategy, business development, funder relations, pricing, revenue cycle management and growth. In January 2023, he was appointed as CEO of our operations in the Middle East.

Qualifications: BSc Actuarial Science (Stellenbosch University), FASSA (Fellow of Actuarial Society of South Africa), FIA (Fellow of the Institute and Faculty of Actuaries, London).