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Make some initial decisions about your practice
Pick a business name for your practice
Note that your legal business name doesn't have to be related whatsoever to your public-facing marketing name! Choose a business name quickly and don't drag your feet. You want to incorporate as fast as possible so you can start engaging with vendors as a legal entity.
Google around for your state's online tool for checking name availability.
Pick a marketing name for your practice
If you're very well known in the community, you may want to include your name in the practice name for marketing reasons. If you plan to hire additional physicians or take on partners at some point, you probably don't. Click around on the DPC Frontier Mapper for ideas.
Some other considerations: make sure there are memorable social media usernames/handles available. Use a service like namecheckr.com to check availability for a name across all social media sites at once. You'll also want to make sure a decent domain name is available. Use Google Domains to check availability.
Decide on your business hours
Decide whether to give your practice a specialist "flavor"
Decide whether to run a "pure" or "hybrid" practice