A nurse practitioner or clinical nurse specialist may give the dispensing order and sign the detailed written order in the following situations:
• They are treating the beneficiary for the condition for which the item is needed;
• They are practicing independently of a physician;
• They bill Medicare for other covered services using their own provider number; and
• They are permitted to do all of the above in the State in which the services are rendered.
A nurse practitioner or clinical nurse specialist may complete Section B and sign Section D of the Certificate of Medical Necessity (CMN) if they meet all the criteria described above for signing orders.