Database of Medical Centres/Specialist Centre Information with linked GPs/Specialists

Would be great to have a database of medical centres, or be able to add a medical centre/specialist centre/clinic with all their details (address, email, ph, fax). Then be able to add doctor/other practitioner details individually and link to a medical centre rather then having to create GP/practitioner contacts and have to add medical centre details to the GP. Would save a significant amount of time, having an auto-fill option or a drop down list or something. As when you’re just starting out (like me) having to enter in every single GP and medical centre details from scratch consumes a lot of time when you have no admin support.