When a physician and an NP both have a face-to-face encounter with a patient on the same day, only one bill needs to be sent. The notes of both practitioners can be combined to decide on the level of service and one bill generated under the physician's name and PIN. So, if time is documented and the medical necessity supports both services, the practice could bill up to a level III service (99233) and a prolonged services charge (99356). Of course, the practice could also decide to bill the services under the NP's name and PIN and receive less money.
The physician and NP must be employees of the same practice.
In any shared service, both the physician and the NP must provide their portion of the services face to face.
The incident-to rules are all still in effect.
You must document medical necessity and what you actually did during the encounter.