In the last five years, how many GP practices have handed back their contract or closed in each of Wales's health boards, and of those that have handed back their contract, how many patients were registered at each practice?
The specific information you have requested about practices that have handed back contracts or closed is not held centrally by Welsh Government.
Information is collected each year to produce the Welsh Government statistical release “GPs in Wales”, the supporting tables contain practice level information including registered patient list size and number of partners for current GP practices. The latest statistical release and supporting tables are in the public domain and can be accessed at the following web address: http://gov.wales/statistics-and-research/general-medical-practitioners/?lang=en
Annual practice lists in Wales can be found in the supporting tables for the General medical services contract: Quality and outcomes framework release at the following web address:
http://gov.wales/statistics-and-research/general-medical-services-contract/?lang=en