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 41-50 out of 71 doctors available Last Name Initial: O Thomas P. Olson, Ph.D., M.S. Rochester, MN Areas of focus: Cardiac rehabilitation, Cardiovascular disease prevention, Heart failure Timothy C. Olson, M.D. Areas of focus: Hospice care, Chronic illness Horatiu Olteanu, M.D., Ph.D. Hematopathologist Rochester, MN Ashraf Omar, M.B., B.Ch. Transplant Pulmonologist Pulmonologist Phoenix, AZ Areas of focus: Bronchoscopy, Lung transplant, Cystic fibrosis, Pulmonary hypertension, Interstitial lung disease, Bronchiectasis, Tran...splant rejection, Transplant-associated infection, Hypoxia Show more areas of focus for Ashraf Omar, M.B., B.Ch. Steve R. Ommen, M.D. Cardiologist Rochester, MN Areas of focus: Echocardiogram, Heart valve disease, Hypertrophic cardiomyopathy James A. Onigkeit, M.D. Anesthesiologist Rochester, MN Areas of focus: Intensive care, CPR first aid Amir B. Orandi, M.D. Pediatric Rheumatologist Rochester, MN Areas of focus: Joint injection, Arthrocentesis, Juvenile idiopathic arthritis, Lupus, Scleroderma, Autoinflammatory disease, Dermatomy...ositis, Vasculitis, Chronic recurrent multifocal osteomyelitis, Uveitis, Mixed connective tissue disease, Morphea, Lupus nephritis Show more areas of focus for Amir B. Orandi, M.D. Diana M. Orbelo, Ph.D. Speech-Language Pathologist Rochester, MN Areas of focus: Voice disorder Robert Orenstein, D.O. Infectious Disease Specialist Phoenix, AZ Areas of focus: Valley fever, C. difficile infection, HIV/AIDS, General infectious diseases, Transplant-associated infection, Travel-re...lated infectious disease Show more areas of focus for Robert Orenstein, D.O. Justin M. Oring, D.O. Internist Infectious Disease Specialist Jacksonville, FL Areas of focus: General infectious diseases, Transplant-associated infection Pagination Doctor search PrevPrevious Page Go to page 33 Go to page 44 Go to page 55 Go to page 66 Go to page 77 NextNext Page National Doctors’ Day is March 30! Give NowMake a gift to honor and celebrate the contributions of our world-class doctors. Give Now