@uniquetheredmuse

There are multiple Mayo Health System location in Wi. I think the biggest is La Crosse.
https://www.mayoclinichealthsystem.org/locations
https://www.mayoclinichealthsystem.org/services-and-treatments/oncology#Conditions
https://www.mayoclinichealthsystem.org/locations/la-crosse/services-and-treatments
I would start there, call and request appt and ask if they treat your specific type of cancer, if not, they may refer you to Rochester oncologist that does.

Laurie