Last modified: June 15, 2021
Now in effect — national provider identifiers (NPIs) will be required for all Medicare claims submitted for the following:
All claims must be submitted with a valid ordering or referring practitioner NPI in box 17b on the 1500 claim form. Furthermore, the submission of ordering and referring health care professional information for a practitioner who is not eligible to order such services could result in a claim resubmission.