Simply because someone owns equipment does not mean they are well qualified to use it. Be sure to ask prospective providers for their educational backgrounds and for which licenses they currently hold. Check that they have been certified by the Biofeedback Certification International Alliance (website: www.bcia.org), the longest existing and only reputable biofeedback certifying body. Ask about the nature of their training and how long they have been in practice.
Neurofeedback practitioners have varying levels of education and training. Many states do not regulate biofeedback. There are only a few institutions of higher learning in the United States that offer courses in this field. Don’t hesitate to ask your prospective provider for a list of credentials.