Most companies won't impose somebody but you could always ask them to recommend someone, I'm sure they'd be happy to do so.

Alternatively, you could try :

http://www.doctorswiss.ch/

You can put your postcode in and the type of doctor you're looking for and the site will generate a list for you.

e.g. If you live in postcode area 8005 and you're looking for a GP ("general medicine" in the list) you'll get this list :

http://www.doctorswiss.ch/en/doctors...21/page_1.html

You could also try www.search.ch