Quick facts


  • MDU: Medical Defence Union
  • A mutual not for profit organisation
  • Established 1885
  • First medical defence organisation in the world


  • Chief Executive, as of 2009: Dr Christine Tomkins
  • Chairman: Dr Paul Riordan-Eva
  • Membership made up of doctors, dentists and other healthcare professionals


  • In 2019, our award winning membership team received 149,000 calls with over 80% answered within 20 seconds. 99% of correspondence was responded to within five working days.
  • Our membership team has been accredited under the prestigious Customer Service Excellence programme and provides excellent levels of service.
  • Over 80% of medical claims during 2019 were successfully defended being closed without payment.
  • Over the last 10 years we successfully defended almost 77% of claims, making no compensation payments.
  • In 2018, we handled almost 27,000 calls to our 24-hour advice line and over 98% of members calling during working hours were speaking to a medico-legal adviser within 20 seconds.