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
  • Membership made up of doctors, dentists and other healthcare professionals


  • In 2017, over 80% of calls to our membership helpline were answered within twenty seconds.
  • Our membership team has been accredited under the prestigious Customer Service Excellence programme and provides excellent levels of service.
  • Our medico-legal advisers, all doctors, have been recognised with a Princess Royal Training Award for excellence in training.
  • Over the last 10 years we successfully defended over 76% of claims, making no compensation payments.
  • In 2017, we handled almost 28,000 calls to our 24 hour advice line and over 98% of members calling during working hours were speaking to a specialist adviser within 20 seconds.
  • Over the last 5 years member satisfaction surveys show more than 95% of members surveyed said they are likely to recommend the MDU to a colleague.