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 Radiology Surgery Surgical Oncology and Endocrine Surgery in Arizona Women's Health Areas that research this condition Radiology Research Doctors who treat this condition Edit search filters close Narrow your search By location Rochester, MN Jacksonville, FL Phoenix/Scottsdale, AZ By last name Find a doctor 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 There are no doctors whose last name begins with the letter D D Find a doctor whose last name begins with the letter E E There are no doctors whose last name begins with the letter F F active Find a doctor 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 Find a doctor 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 Find a doctor whose last name begins with the letter N N There are no doctors 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 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 Find a doctor 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 There are no doctors 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 Location: Phoenix, AZ Last Name Initial: G Richard J. Gray, M.D. Phoenix, AZ Areas of focus: Cancer treatment, Radiation therapy, Sentinel node biopsy, Intraoperative radiation therapy, Breast cancer, Melanoma, S...tomach cancer, Sarcoma Show more areas of focus for Richard J. Gray, M.D. Research Mayo Clinic doctors and scientists are continually working to improve breast cancer diagnosis and treatment. Mayo Clinic researchers are involved in many studies related to breast cancer prevention, diagnosis and treatment. Mayo Clinic doctors often inform eligible patients about opportunities to participate in research studies and clinical trials related to advancements in the treatment of breast cancer. Areas of research include: Analyzing the genetic makeup of breast cancer cells to understand how DNA changes affect response to cancer treatments and personalize treatment options. Harnessing the power of viruses to treat noninvasive breast cancer, triple-negative breast cancer and metastatic breast cancer. Innovative breast imaging techniques, such as dynamic contrast-enhanced MRI, contrast-enhanced digital mammography and molecular breast imaging. Making treatment safer using new technology, such as proton beam therapy to shape radiation beams that reach left-sided breast cancer but spare the heart. Refinement of the list of genes that are involved in the development of breast cancer to improve the use of genetic testing. Mayo Clinic Comprehensive Cancer Center is one of a select group of facilities that received a Specialized Program of Research Excellence (SPORE) grant for breast cancer research fr