Thirty-five Norfolk based practices made up the original consortium at baseline in 1993 and have continued to work with the EPIC-Norfolk study:

• Adelaide Street Health Centre, Norwich
• Attleborough Surgery
• Bates Green Health Centre, Norwich
• Birchwood Surgery, North Walsham
• Brundall Medical Centre
• Bullock Fair Surgery, Harleston
• East Harling Surgery
• Elmham Surgery, Holt
• Gurney Court Health Centre, Norwich
• The Health Centre (The Lawns and parish Fields) Diss
• Heathgate and Rockland St Mary, Poringland
• Hellesdon Medical Practice
• Hingham Surgery
• The Humbleyard Practice (Cringleford, Hethersett and Mulbarton)
• The Medical Centre, Old Costessey
• Newmarket Road Surgery, Norwich
• Oak Street Medical Practice, Norwich
• Old Catton Surgery
• Paston Surgery, North
• Prospect Medical Practice, Norwich
• St. Stephens Gate Surgery, Norwich
• Theatre Royal Practice, East Dereham
• Thorpe Health Centre
• Trinity and Bowthorpe Health Centre, Norwich
• Thorpe Health Centre, Norwich
• West Earlham Health Centre
• Watton Surgery
• Walsham
• West Pottergate Surgery, Coltishall
• Willow Wood Surgery, Sprowston
• Windmill Surgery, Wymondham