Not only was the Chasam Sofer zt”l not a Chassid, but he was against Chassidus. A close friend of mine has worked on a book, showing, based on the very writings of the Chasam Sofer, that in over 200 places in his writings, he is uncomplimentary about Chassidus.
This does not mean he did not get along with Chassidim or their Rebbes. But it is clear that he had difficulties with their ideology and practices.