When an employee is injured at work, is the employer allowed to direct the employee to visit the company doctor? If the employer does direct this, is the employee able to refuse?
You may have the right to direct an employee to attend a medical examination (at your expense). Whether this direction is lawful and reasonable, and therefore must be followed, depends on whether there is a genuine need for evidence of their fitness to work or there is cause to be concerned that the employee cannot perform the inherent requirements of their role.
Practically speaking, if the employee provides you with medical evidence from their own doctor about their fitness for work, it will be hard for you to say that there is a reason for them to attend your company doctor as well.
For further information, refer to the chapter I1 Ill or Injured Employees in the Employment Law Practical Handbook.