If your practice's Facebook Page has less than 100,000 likes, you can invite people who react to your Page's posts to like your Page. This is a great way to organically grow your Page's followers, since it's possible that clients may have liked your post but not your Page...and we want them to see your future content too!
The caveat here is to remember- focus on quality > quantity. It's almost always better to focus on reaching clients- existing and potential. Occasionally, a post will go viral or get reach outside your geographic area. While it's great for an engagement bump, these aren't great long-term Page followers. They're unlikely to engage with future posts-- particularly those that promote your practice and it's services, so in effect can downgrade your page engagement. It would be much better to build the page of followers in your local area that will be clients.
However, inviting Facebook followers is a quick, easy and FREE way to grow your Page followers. The process will show the person's name, so you may recognize some existing clients. Further, you can often click or hover on the person's profile so you can confirm if they're local to your practice. Here's how:
To invite people who react to your Page's posts:
Facebook Page admins or editors can navigate to one of your Page's posts.
Click the reactions section of your Page's post. This will show who has reacted to your Page's post.
Next to a person's name, click Invite to invite the person to like your Page.
It will change to Invited after you have clicked the link.
The user will receive a Facebook notification that your Page has invited them to like the Page.