Markesan Clinic 1175 N Margaret St # B Markesan, WI 53946 Phone : (920) 398-2406 Business Category Physicians & Surgeons-M.D. Clinics & Medical Centers Agnesian Healthcare 1175 N Margaret St # B Markesan, WI 53946 Phone : (920) 398-2406 Business Category Physicians & Surgeons-M.D.