GPC concerned raw data may be used to rate practice performance Unprocessed practice-level data published by the government this week could be used by the NHS Commissioning Board (NCB) to assess practice performance, the GPC has warned. by Abi Rimmer Sign in to continue Sign In Email address Password Stay signed in Trouble signing in? Reset password: Click here Need help? Email us Register FREE Limited free articles a month Free email bulletins Register Now Register Now Take a 30-day trial Join MIMS now and pay nothing for the first 30 days Join GPOnline now and pay nothing for the first 30 days Sign Up Sign Up