If your naturopathic nutritionist is a registered provider recognised by your insurer, you may be able to claim back a portion of the cost of receiving nutrition advice. Health insurance companies must ensure all healthcare providers are registered practitioners with a medically-recognised qualification in their specialty field. When you make a claim on your health insurance policy, you’ll be asked to supply the provider number of your healthcare practitioner. For online claims, the provider number will be seven digits followed by one letter.