Hi! I have worked for one doctor for 10 years, he is an ophthalmologist. He has decided to add an optometrist. The optometrist has given me all his information, NPI number etc. When I bill for the optometrist, all the payments go to his other office (he only works with our office 2 days a week) even though our address in on the claim. Is he supposed to have different numbers for our office? I have never had to deal with more than one doctor or adding a new doctor, so please forgive me. Thanks!