Need help in understanding when to bill incident to. New patient in office or in hospital setting; if NP sees the patient and does the work up, physician comes in and does face to face briefly and signs note. Nothing documented that physician was there, only has his signature and NP dictates hospital note. Is this to be billed under physician NPI for billing, rendering and supervising provider? Also, if NP sees an established patient and physician does not see the patient, we bill under physician billing NPI, but NP rendering and supervising NPI. Hope this makes sense.