the former Abertawe Bro Morgannwg University Health Board to the former Cwm Taf University Health Board, leading to changes in names and boundaries for both health boards. The University Hospital of Wales in Cardiff is the largest teaching hospital in Wales, the largest hospital outside London and the third-largest in the United Kingdom. Five of the health boards paid for spot contracts with private healthcare providers costing a total of more than £6 million between 2013 and 2015 to carry out NHS work on elective surgery. General practice In 2019 the Welsh government decided to introduce an NHS indemnity scheme for GPs, to reduce the financial burden of their insurance premiums. The cost, £11.3 million, was to be deducted from the global sum, thus reducing GP practice income. This was not welcomed by the British Medical Association, which complained that indemnity costs for all other staff were borne centrally. A similar scheme in England was centrally funded. Other NHS Wales bodies Another important organisation is the Health Commission Wales, an executive agency of the Welsh Government whose primary role is to organise and fund tertiary care and other highly specialist services. It also provides advice and guidance about specialist services to other parts of NHS Wales. Health Education and Improvement Wales is a Special Health Authority that provides education and training services for health care professionals. The NHS Wales Shared Services Partnership (NWSSP) supports NHS Wales through the provision of a range of support functions and services at an NHS Wales wide scale. It is hosted within Velindre University NHS Trust, as well as being governed by the Shared Services Partnership Committee. Digital Health and Care Wales (DHCW), established in April 2021 is a Special Health Authority responsible for building and designing digital services for health and care in Wales. DHCW replaces the NHS Wales Informatics Service (NWIS) that was established in April 2010. Health Technology Wales (HTW), established in November 2017, is responsible for the identification, appraisal and adoption of non-medicine technologies in Welsh health and care settings. HTW is hosted within the Velindre University NHS Trust. NHS Direct Wales/Galw Iechyd Cymru provides a non-emergency telephone health advice and information service. It operates 24 hours a day every day of the year with callers being given the option of communicating in Welsh or English. NHS Direct Wales is part of the Welsh Ambulance Service NHS Trust. There are seven