Challenging work situation

I work with some really difficult people at my new job (several months in now). It’s affecting patient care and my mental health. These colleagues (back office staff) act very differently when leadership isn’t around. For context, this is a new gen peds practice opening up multiple offices. The mission and vision of working with medically underserved kiddos is fantastic. Leadership frequently talks about building a positive work culture, liking where you work, and being open to feedback from the ground level.

I’m considering approaching leadership about the tension in the office because they have zero idea what’s going on. I’m conflicted. I don’t think I would lose my job, but I also don’t want to stir the pot. Anyone been in a similar situation?