I just typed out a long response, that was essentially rambling. Here's my response:
Too many variables to answer this. Ranging from how concrete the job description and flexibility of it is, to how many candidates are interviewing. So many variables that can impact the nature of the interview. Mine, if ever, had any really clinical questions, they were usually just casual conversations, and asking them questions to find out if it were a good fit for me (candidate).
When the day comes that I seek to add a partner, I'm going to want to know a lot more details about their clinical practice style, and conversely what do they really want out of a practice to make them happy. Is there enough overlap in practice and practice goals to make it work fluidly?