Welcome to Dante's first circle of hell.
Once you have completed your packet and they have verified your references, etc. it goes to your dept chief for signature, then the professional standards board, then to the front office for the chief of staff and hospital admin. The process is slightly different depending on if in house or outside hr staff are processing the documents. Dept chiefs are usually quick. Professional standards board varies. Some convene monthly others more quickly. Front office is usually the slowest. They usually only meet monthly and if your HR rep is slow to get everything ready for the meeting, your app sits on a pile for another month. The summer is coming up, so add in vacations and some canceled meetings into the process. This may add a month or two of wait time. Good luck.