Our Team


Joachim Werr

Founder, CEO Medical Doctor and PhD at the Karolinska Institute, Stockholm, Sweden; Vice President at Investor AB, Investor Growth Capital, Stockholm, Sweden; A&E Consultant, Karolinska Institute; Engagement Manager, McKinsey & Co, Stockholm, Sweden joachim.werr@health-navigator.co.uk

Lawrence Petalidis

Chief Business and Innovation Officer for Health Navigator. Prior to this, Lawrence led innovation at Chelsea and Westminster NHS securing and funding some 20 digital health projects and collaborations.


Gerry Rook

Chief Nurse Lead Health Coach, BSc Hons District Nurse, Community Services Manager geraldine.rook@health-navigator.co.uk

Andries van der Watt

Chief Operations and Technology Officer. B.Eng (Mech), Project Management Professional (PMP), ITIL, with experience in running large global programmes and PMOs, IT Technologies (Software Development, ITIL, Service Delivery, Outsourcing), with 12+ years in healthcare industry globally. andries.vanderwatt@health-navigator.co.uk

Miguel Sá

MSc International Management, Kings College London
BSc Human Resources Management, ISCTE Business School, Lisbon




Core Team

Eleitha Medina

Data Scientist MSc Data Science, City, University of London; BA Hons Economics and Minor in Finance, Richmond the American International University. eleitha.medina@health-navigator.co.uk