I work for a group practice and two of the three physicians have opted out of Medicare. The 3rd physician has not opted out, but has not enrolled either. I'm guessing he is considred an out of network provider. I have submitted claims for him on multiple times and Noridian keeps sending me th same letter:
Medicare is unalbe to process the claims because the NPI in Item 33a and/or Item 24j was blank, unreadable or invalid. The NPI was listed and I do not know what else to do. The practice NPI did not opt out of Medicare just the 2 other individual physicians. Do I submit the claim under the physician only and not the Group, I'm so confused...