Every chiropractors wants to be #1 in the Google Local search results. Some aspects of how Google ranks sites is out of your control, but there are some concrete things that you can do to improve your chances.
First, get your practice listed on the new Google My Business. It's free, and it starts the process of getting your site on the Google maps listings.
Second, integrate your website with Google+ so that Google can verify your location.
Third, start building citations to your website. This builds your local search profile's credibility by verifying your NAP data (name, address, and phone number).
Fourth, get happy patients to review your services in Google+.
See more about the importance of citations and NAP here.