Perform a new searchEdit search filters close Narrow your search By conditions treated/procedures performed No results found 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 Find a doctor whose last name begins with the letter D D Find a doctor whose last name begins with the letter E E Find a doctor whose last name begins with the letter F F Find a doctor whose last name begins with the letter G G Find a doctor whose last name begins with the letter H H Find a doctor 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 Find a doctor 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 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 Find a doctor whose last name begins with the letter S S Find a doctor whose last name begins with the letter T T Find a doctor whose last name begins with the letter U U Find a doctor whose last name begins with the letter V V Find a doctor 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 Find a doctor 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 31-38 out of 38 doctors available Location: Phoenix, AZ Last Name Initial: R Tom Roy, M.D. Cardiologist Phoenix, AZ Areas of focus: Heart failure, Coronary artery disease, Hyperlipidemia, Heart arrhythmia, Atrial fibrillation, Cardiomyopathy, Atrial f...lutter, Heart murmur, Coronary calcification, Syncope, Coronary artery spasm Show more areas of focus for Tom Roy, M.D. Barbara E. Ruddy, M.D. Internist Phoenix, AZ Kevin C. Ruff, M.D. Gastroenterologist Phoenix, AZ Areas of focus: Balloon assisted endoscopy, Nutrition (Healthy eating) Christine Rukasin, M.D. Internist Pediatrician Allergist-Immunologist Phoenix, AZ Areas of focus: Immunotherapy, Asthma, Allergy, Food allergy, Atopic dermatitis, Hives and angioedema, Anaphylaxis, Dermatitis, Eosinop...hilic esophagitis, Drug allergy, Primary immunodeficiency, Chronic cough, Rhinitis Show more areas of focus for Christine Rukasin, M.D. William G. Rule, M.D. Radiation Oncologist Phoenix, AZ Areas of focus: Proton therapy, Radiation therapy, Intensity-modulated radiation therapy, Intraoperative radiation therapy, Stereotacti...c body radiotherapy, Colon cancer, Rectal cancer, Multiple myeloma, Pancreatic cancer, Esophageal cancer, Cholangiocarcinoma, Lymphoma, Leukemia, Liver cancer, Stomach cancer, Pancreatic neuroendocrine tumor, Anal cancer, Small bowel cancer, Neuroendocrine tumor Show more areas of focus for William G. Rule, M.D. Chad M. Ruoff, M.D. Sleep Medicine Specialist Phoenix, AZ Areas of focus: Sleep disorders Annie M. Rusk, M.D. Pulmonologist Critical Care Specialist Phoenix, AZ Areas of focus: Paracentesis, Chest tube placement, Bronchoscopy, Thoracentesis, Endotracheal intubation, COPD, Sepsis, Lung nodule, Sh...ock, Respiratory failure, Pleural disease Show more areas of focus for Annie M. Rusk, M.D. Jean-Claude M. Rwigema, M.D. Radiation Oncologist Phoenix, AZ Areas of focus: Proton therapy, Radiation therapy, Stereotactic radiosurgery, Intensity-modulated radiation therapy, Stereotactic body ...radiotherapy, Prostate cancer, Head and neck cancer, Bladder cancer, Testicular cancer, Renal cell carcinoma Show more areas of focus for Jean-Claude M. Rwigema, M.D. Pagination Doctor search PrevPrevious Page Go to page 22 Go to page 33 Go to page 44 5X Challenge Give TodayThanks to generous benefactors, your gift today can have 5X the impact to advance AI innovation at Mayo Clinic. Give Today