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 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 There are no doctors 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 There are no doctors 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 active 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 There are no doctors 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 There are no doctors 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 1-4 out of 4 doctors available Location: Rochester, MN Last Name Initial: M W. Richard Marsh, M.D. Neurosurgeon Rochester, MN Areas of focus: Craniotomy, Epilepsy surgery, Brain tumor surgery, Intraoperative magnetic resonance imaging, Brain biopsy, Hemifacial ...spasm surgery, Chiari malformation surgery, Trigeminal neuralgia surgery, Epilepsy, Trigeminal neuralgia, Brain tumor, Degenerative disk disease, Chiari malformation, Spinal cord tumor, Hemifacial spasm, Syringomyelia Show more areas of focus for W. Richard Marsh, M.D. Kenneth W. Merrell, M.D. Rochester, MN Areas of focus: Radiation therapy, Proton therapy, Intensity-modulated radiation therapy, Neuroendocrine tumor, Pancreatic neuroendocri...ne tumor Show more areas of focus for Kenneth W. Merrell, M.D. Fredric B. Meyer, M.D. Neurosurgeon Rochester, MN Areas of focus: Craniotomy, Epilepsy surgery, Awake brain surgery, Pituitary tumor surgery, Brain tumor surgery, Brain biopsy, Hemifaci...al spasm surgery, Trigeminal neuralgia surgery, Epilepsy, Trigeminal neuralgia, Hydrocephalus, Moyamoya disease, Brain tumor, Brain aneurysm, Astrocytoma, Oligodendroglioma, Spinal cord tumor, Embryonal tumor, Brainstem tumor, Pineal gland tumor, Hemifacial spasm Show more areas of focus for Fredric B. Meyer, M.D. Kai J. Miller, M.D., Ph.D. Neurosurgeon Pediatric Neurosurgeon Rochester, MN Areas of focus: Deep brain stimulation, Craniotomy, Pediatric cervical spine surgery, Brain tumor surgery, Intraoperative magnetic reso...nance imaging, Brain biopsy, Computer assisted brain surgery, Pediatric neurosurgery, Epilepsy, Movement disorder, Brain tumor, Pediatric brain tumor, Atypical teratoid rhabdoid tumor Show more areas of focus for Kai J. Miller, M.D., Ph.D. Request an appointment Conditions treatedDoctors by location and specialty Feb. 14, 2026 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 Brain Tumor ProgramDepartmenthomeSectionsRequest an appointmentOverviewTests & proceduresConditions treatedDoctorsDoctors by location and specialtySpecialty groupsExpertise & rankingsClinical trialsResearchPatient storiesCosts & insuranceNews from Mayo ClinicReferrals SectionsRequest an appointmentOverviewTests & proceduresConditions treatedDoctorsDoctors by location and specialtySpecialty groupsExpertise & rankingsClinical trialsResearchPatient storiesCosts & insuranceNews from Mayo ClinicReferrals ORG-20439710 Medical Departments & Centers Brain Tumor Program