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 Cancer Surgery Program in Jacksonville Breast Clinic Cancer Care at Mayo Clinic Oncology (Medical) Radiation Oncology Doctors who treat this condition Edit search filters close Narrow your search By location Rochester, MN By last name There are no doctors whose last name begins with the letter A A Find a doctor whose last name begins with the letter B B Find a doctor whose last name begins with the letter C C Find a doctor whose last name begins with the letter D D There are no doctors whose last name begins with the letter E E There are no doctors whose last name begins with the letter F F There are no doctors whose last name begins with the letter G G Find a doctor whose last name begins with the letter H H There are no doctors whose last name begins with the letter I I Find a doctor whose last name begins with the letter J J There are no doctors whose last name begins with the letter K K There are no doctors whose last name begins with the letter L L Find a doctor whose last name begins with the letter M M There are no doctors whose last name begins with the letter N N Find a doctor whose last name begins with the letter O O Find a doctor whose last name begins with the letter P P There are no doctors whose last name begins with the letter Q Q active Find a doctor whose last name begins with the letter R R There are no doctors whose last name begins with the letter S S There are no doctors whose last name begins with the letter T T There are no doctors whose last name begins with the letter U U There are no doctors whose last name begins with the letter V V There are no doctors whose last name begins with the letter W W There are no doctors whose last name begins with the letter X X Find a doctor whose last name begins with the letter Y Y There are no doctors whose last name begins with the letter Z Z Reset all filters Search Tips Use quotes for phrases. Even if there are no auto-suggestions within the search field, hit "Search" anyway, as you may still get results. Displaying 1-1 out of 1 doctors available Last Name Initial: R Kathryn J. Ruddy, M.D. Oncologist Rochester, MN Areas of focus: Cancer treatment, Cancer survivorship program, Breast cancer, Male breast cancer By Mayo Clinic Staff Request an appointment Diagnosis & treatment March 13, 2024 Print Living with male breast cancer? Connect with others like you for support and answers to your questions in the Breast Cancer support group on Mayo Clinic Connect, a patient community. Breast Cancer Discussions Signatera Test. Is it truly helpful and worthwhile? 112 Replies Fri, Dec 26, 2025 chevron-right Anyone diagnosed with “atypical connective tissue disorder"?” 13 Replies Fri, Dec 26, 2025 chevron-right Tamoxifen 10mg vs 20mg 53 Replies Thu, Dec 25, 2025 chevron-right See more discussions Related Associated Procedures Breast cancer supportive therapy and survivorship Breast cancer surgery Breast self-exam for breast awareness Chemotherapy Chemotherapy for breast cancer CT scan Hormone therapy for breast cancer Mammogram Mastectomy Needle biopsy Radiation therapy Radiation therapy for breast cancer Sentinel node biopsy Ultrasound X-ray Show more associated procedures Products & Services A Book: Beyond Breast Cancer A Book: Mayo Clinic Family Health Book Newsletter: Mayo Clinic Health Letter — Digital Edition Show more products and services from Mayo Clinic Male breast cancerSymptoms&causesDiagnosis&treatmentDoctors&departments Research: It's all about patients Show transcript for video Research: It's all about patients [MUSIC PLAYING] Joseph Sirven, M.D., Professor of Neurology, Mayo Clinic: Mayo's mission is about the patient. The patient comes first. So the mission and research here is to advance how we can best help the patient, how to make sure the patient comes first in care. So in many ways, it's a cycle. It can start with as simple as an idea worked on in a laboratory, brought to the patient bedside, and if everything goes right — and let's say it's helpful or beneficial — then brought on as a standard approach. And I think that is one of the unique characteristics of Mayo's approach to research — that patient-centeredness — that really helps to put it in its own spotlight. CON-20374726 Diseases & Conditions Male breast cancer