I thought there was one in Green Bay but googling didn't find him. You might have to drive south to Fox Valley Wellness in Fond du Lac (by Oshkosh).
There was a chiro on the south end of Duluth who was into Lyme (about
10-15 miles S of Duluth).
Wisconsin Lyme Association's website looks to be no longer, maybe they have a facebook page.
Minnesota has several support groups, one is led by the well known Tom Grier in Duluth, :
https://mnlyme.org/resources/other-mn-lyme-groups/