Verifying ART therapist's credentials

Quick question.

I’ve recently hurt my back to a point where if I bend forward at certain angles it makes my knees buckle. That being the case, I’m looking for an ART therapist in my neck of the woods.

Is there a way of verifying if a therapist is actually qualified to provide ART? you can search for a provider in your area. you need to find someone who is certified in your area of pain and find someone with as much experience as possible. where do you live.