Doctors 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. Find doctors and medical staff: Edit search filters close Narrow your search Doctor's Name, Condition Or Procedure By location Jacksonville, FL Phoenix/Scottsdale, AZ Rochester, MN 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 active 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 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 By conditions treated No results found By procedures performed No results found By spoken language No results found 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 11-12 out of 12 doctors available Last Name Initial: D Oana M. Dumitrascu, M.D. Neurologist Vascular Neurologist Phoenix, AZ Areas of focus: Telestroke, Transcranial Doppler test, Botox injection, Stroke, Optic neuritis, Transient ischemic attack, Vascular dem...entia, Fibromuscular dysplasia, Moyamoya disease, Cerebrovascular disease, Carotid artery disease, Myelin oligodendrocyte glycoprotein antibody-associated disease, Double vision, Cerebral amyloid angiopathy, CNS vasculitis, Spinal cord infarction, Retinal vein occlusion Show more areas of focus for Oana M. Dumitrascu, M.D. P. James B. Dyck, M.D. Neurologist Rochester, MN Areas of focus: Peripheral neuropathy, Guillain Barre syndrome, Diabetic neuropathy Pagination Doctor search PrevPrevious Page Go to page 11 Go to page 22 Request an appointment Conditions treatedSpecialty groups Nov. 08, 2025 Share on: FacebookTwitter Mayo Clinic in Rochester, Minnesota, Mayo Clinic in Phoenix/Scottsdale, Arizona, and Mayo Clinic in Jacksonville, Florida, have been ranked among the best Neurology & Neurosurgery hospitals in the nation by U.S. News & World Report. Learn more about this top honor NeurologyDepartmenthomeSectionsOverviewTests & proceduresConditions treatedDoctorsSpecialty groupsExpertise & rankingsClinical trialsResearchPatient storiesCosts & insuranceNews from Mayo ClinicReferrals SectionsRequest an AppointmentOverviewTests & proceduresConditions treatedDoctorsSpecialty groupsExpertise & rankingsClinical trialsResearchPatient storiesCosts & insuranceNews from Mayo ClinicReferrals ORG-20117054 Medical Departments & Centers Neurology