Karl Golnik, MD

Huiam Mubarak, MD, is a neurologist in the Multiple Sclerosis Program and an assistant professor in the Department of Neurology at Barrow Neurological Institute. She also serves as director of Barrow Global Neurology. She is board certified in neurology by the American Board of Psychiatry and Neurology. Dr. Mubarak’s expertise is in neuroimmunology. This includes the diagnosis and treatment of multiple sclerosis and other autoimmune disorders affecting the brain and spinal cord. She is a member of the American Academy of Neurology, the National Medical Association, and the Sudanese American Physicians Association. Dr. Mubarak earned her medical degree from the Indiana University School of Medicine in Indianapolis and a master’s degree in biomedical science from Barry University Miami Shores. She completed her neurology residency at Barrow Neurological Institute in Phoenix, Arizona, where she also completed fellowships in neuroimmunology and global neurology. Dr. Mubarak takes a special interest in health disparities in multiple sclerosis and other neuroimmunological disorders. As director of the Institute’s global neurology program, she aims to encourage more diversity and global collaboration in the field.

Terry Fife, MD, is the director of the Balance Disorders and Vestibular Neurology Program at Barrow Neurological Institute at Dignity Health St. Joseph’s Hospital and Medical Center in Phoenix. He is board certified in both internal medicine and in neurology. Dr. Fife specializes in disorders of balance and equilibrium including vertigo, cerebellar ataxia, chronic imbalance, hydrocephalus, recurrent falling, syncope and postural hypotension, dizziness, and nystagmus and eye movement disorders. His research interests include the diagnosis and management of vertigo and equilibrium disorders, testing of balance and vestibular function, and cerebellar ataxia. He is the past chairman of the Neuro-Ophthalmology & Neuro-Otology Section of the American Academy of Neurology. He is a past president of the Arizona Neurological Society and serves on a number of national committees. Dr. Fife has published scholarly articles on topics related to balance disorders and is a reviewer for numerous journals on topics of balance and vertigo. After completing medical school at Texas A&M University in College Station, Texas, Dr. Fife completed his internal medicine residency at the University of California-Davis and then completed neurology training at the University of California-Los Angeles (UCLA). He completed fellowship training in neuro-otology and balance disorders at UCLA on a National Institutes of Health National Research Service Award.

Nicki Niemann, MD, is a neurologist in the Muhammad Ali Parkinson Center and an assistant professor of neurology at Barrow Neurological Institute. He is board certified in neurology by the American Board of Psychiatry and Neurology. Dr. Niemann’s expertise includes the diagnosis and management of Parkinson’s disease and other movement disorders. He is a member of the American Academy of Neurology and the International Parkinson and Movement Disorder Society. Dr. Niemann earned his medical degree from the University of Copenhagen in Denmark. He completed his neurology residency and a fellowship in movement disorders at Baylor College of Medicine in Houston. Dr. Niemann’s research interests include clinical trials and translational research in Parkinson’s disease and other movement disorders, genetics of Parkinson’s disease, and novel applications of botulinum toxin.