naturedoc
The best choice would be to access www.naturopathic.org, which is the licensed group of Naturopathic Doctors. If they can't help you, they will refer you to someone nearby who is legit. If your state licenses acupuncturists, you can check with your state. Homeopaths should have a separate certification, usually a CH, after their name. But as with any doctor, the best way to find out is get them on the telephone. If they start selling you things, they aren't legit, because anyone with with a credential they value will need to see you before they try to treat you.
Good luck