Several people said they were interested in this content yesterday. Different approaches available so I include 2 links below:
1. Fellow Tableau PreSales team member Andy Kemp has created a Workbook that includes CCG, MSOA, LSOA Boundaries as well asGP Codes and Lat & Long positions. The TWBX file becomes large (143MB) if you do this but when you know you'll be working with mapping you'll probably find it is worthwhile. Find the (v10) workbook and Andy's content, comment and explanation here.
2. Partner company The Information Lab have created a very useful package called the UK Geocoding Pack.