Mark Keegan, MD

Dr. Mark Keegan is a neurologist who specializes in autoimmune conditions affecting the nervous system. He earned his medical degree from the University of Saskatchewan Medical School and completed his residency training at both the University of Saskatchewan and Mayo Clinic College of Medicine. Dr. Keegan furthered his expertise through a fellowship at Mayo Clinic in Rochester, giving him over three decades of experience in neurology. He provides care in English.

Dr. Keegan practices at Mayo Clinic Hospital Methodist Campus in Rochester, Minnesota. His clinical expertise centers on autoimmune neurological disorders, including autoimmune encephalopathy and dementia. He focuses on diagnosing and treating conditions where the immune system mistakenly attacks the nervous system, helping patients understand complex autoimmune processes that can affect brain function and memory.