Get the timing right at work
The register is what employers, patients and clients check, so a mismatch causes problems quickly. The GMC is a good example: doctors must use their full registered name when signing statutory documents, including prescriptions, and give their registered name and GMC reference number to anyone who asks. GMC: using your registered name and number
So update your regulator first, or at the same time as you tell HR. The HCPC asks that the name you submit is the same as your practising name, which is a useful rule of thumb everywhere. Our guide to changing your name with your employer covers payroll, ID badges and system accounts.