Ask for recommendations from co-workers or friends in the same health care system. Else just pick one that’s close to you. You can usually change if he/she isn’t acceptable.
Cuz I hardly ever get sick I just go to the same guy my girl goes too and he seems alright. I’d take Thrrrpptt!'s advice and ask workmates or friends for someone, also check out the clinic that they’re based in. If the place they work in looks shitty then the doctor won’t be much good :)
btw - How do you know it’s time to regularly go to a quack?