Q: So seems like you haven't had experience in the health care industry.
A: You are right, I don't.
But, I have had XX years of experience as accounting manager (your title) and ample experiences in various accounting functions such as XXXX and excellent skills with XXX (accounting systems), which are all transferrable across the industries.
As much as I understand that there would be a learning curve as I start, I am very confident that I would be able to bring myself up to speed within a reasonable time frame.