Print Departments and specialties Mayo Clinic has one of the largest and most experienced practices in the United States, with campuses in Arizona, Florida and Minnesota. Staff skilled in dozens of specialties work together to ensure quality care and successful recovery. Departments that treat this condition Breast and Melanoma Surgical Oncology in Rochester Breast Clinic Breast Surgical Oncology in Jacksonville Cancer Care at Mayo Clinic Cancer survivorship clinics Familial Cancer Program High Risk Breast Clinic Oncology (Medical) Plastic Surgery Proton Beam Therapy Program Radiation Oncology