GP name box & GP clinic box

Is it possible to add another box to the medical field in the patients record so i can input a GP’s name and use the current system to apply a GP clinic details?
This would avoid me having to duplicate all the Gp clinic details for each named GP at every clinic, and would speed my ability to log details in front of clients, as if their current named GP is not in my contacts, i have to take all the details again.