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 active Find a doctor whose last name begins with the letter O O Find a doctor whose last name begins with the letter P P Find a doctor whose last name begins with the letter Q Q 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 Find a doctor 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 1-10 out of 64 doctors available Last Name Initial: O Are new patients being accepted? Mayo Clinic is always welcoming new patients. When requesting an appointment, you will be matched with the best care team for your specific needs. Erin K. O'Brien, M.D. Otolaryngologist Rochester, MN Areas of focus: Endoscopic procedure, Nasal polyps, Chronic sinusitis, CSF leak, Nasal and paranasal tumors, Samter's triad Marcia L. O'Brien, M.D. Family Physician Rochester, MN Cumara B. O'Carroll, M.D., M.P.H. Neurologist Phoenix, AZ Areas of focus: Telestroke, Stroke D. Fearghas O'Cochlain, M.D. Interventional Cardiologist Shawn W. O'Driscoll, M.D., Ph.D. Orthopedic Surgeon Sports Medicine Specialist Rochester, MN Areas of focus: Shoulder arthroscopy, Shoulder replacement surgery, Cartilage repair, Elbow arthroscopy, Osteoarthritis, Golfer's elbow..., Sports injury, Tennis elbow, Labral tear, Osteochondritis dissecans, Shoulder impingement syndrome, Articular cartilage injury, Biceps tear, Broken elbow, Elbow impingement Show more areas of focus for Shawn W. O'Driscoll, M.D., Ph.D. Jason S. O'Grady, Sr., M.D. Family Physician Rochester, MN Jack C. O'Horo, M.D., M.P.H. Internist Critical Care Specialist Infectious Disease Specialist Rochester, MN Areas of focus: Intensive care, Infection control, General infectious diseases, Sepsis, Infection Madeleine B. O'Keefe, M.D. Pediatric Hematologist / Oncologist Rochester, MN Areas of focus: Lymphoma, Acute lymphocytic leukemia, Acute myelogenous leukemia, Non-Hodgkin's lymphoma, Diffuse large b-cell lymphoma..., Hodgkin lymphoma, Acute leukemia, Burkitt's lymphoma Show more areas of focus for Madeleine B. O'Keefe, M.D. Patrick W. O'Leary, M.D. Pediatric Cardiologist Rochester, MN Areas of focus: Echocardiogram, Heart disease, Hypoplastic left heart syndrome, Congenital heart defects in children, Congenital heart ...disease Show more areas of focus for Patrick W. O'Leary, M.D. Ciara O'Sullivan, M.B., B.Ch. Oncologist Rochester, MN Areas of focus: Breast cancer, Brain metastasis, HER2 positive invasive breast cancer Pagination Doctor search Go to page 11 Go to page 22 Go to page 33 Go to page 44 Go to page 55 NextNext Page One gift, 3X the impact Give NowJoin our Year-End Challenge and triple your gift to help shape the future of healthcare! Give Now