I hire ACNPs for critical care. HR controls the pay offer, based on experience, but I ALWAYS tell candidates to negotiate! Never accept the first offer! There is always a range, and room to move with hours etc. All bonuses and raises are based on salary so go for the highest you can. They can only say no and give you the change to accept or decline. Always ask about signing bonus - they won't offer if you don't ask! I have had candidates in same position with a $15K/yr pay difference, merely based on their negotiation, or not. It's also smart to go to the physician in charge and thank them for the interview opportunity and mention that you are interested in the position but may not be able to agree on terms. They can often put pressure on HR/admin if they really want you.