Dr. Mark Dietz

Nicole Clark is a Neurologist in Helena, Montana. Dr. Clark is highly rated in 53 conditions, according to our data. Her top areas of expertise are Autosomal Dominant Nocturnal Frontal Lobe Epilepsy (ADNFLE), Seizures, Memory Loss, and Multiple Sclerosis (MS).

Anthony Williamson is a Neurologist in Helena, Montana. Dr. Williamson is highly rated in 2 conditions, according to our data. His top areas of expertise are Memory Loss, Seizures, Epilepsy, and Movement Disorders. Dr. Williamson is currently accepting new patients.

Dr. Henning specializes in evaluating and treating disorders affecting the spinal cord, peripheral nerves, neuromuscular junction and muscle. Dr. Henning has also been actively involved in clinical research during his 30 years of practice. Dr. Henning received his undergraduate degrees from the University of Arizona including a Bachelor of Science in Chemistry and a Bachelor of Arts in Psychology in 1979. He then went on to complete his doctorate degree in osteopathic medicine from the Kirksville College of Osteopathic Medicine of the A.T. Still University in Missouri in 1983. He completed his internship in the Detroit Osteopathic Hospital/Bi-County Hospital/Children’s Hospital of Michigan System in 1984 and went on to complete his neurology residency at the University of New Mexico in 1987. Dr. Henning then completed his fellowship in neuromuscular disease and electromyography at the Medical College of Georgia in 1988. After completing his fellowship, Dr. Henning made the journey to Great Falls, Montana where he joined Dr. Dennis Dietrich in forming Advanced Neurology Specialists. Dr. Dietrich announced his retirement in mid-2021, which prompted Dr. Henning to join forces with the Great Falls Clinic. Dr. Henning is Board Certified by the American Board of Psychiatry and Neurology, by the American Board of Electrodiagnostic Medicine and by the American Osteopathic Board of Neurology and Psychiatry. He also has served as the Medical Director of the Muscular Dystrophy Association Clinic in Great Falls and Missoula, MT. Dr. Henning also provides neurology outreach services in Havre, MT at the Northern Montana Medical Group and will continue to provide this service. Dr. Henning is highly rated in 2 conditions, according to our data. His top areas of expertise are Spinal Muscular Atrophy (SMA), Distal Median Nerve Dysfunction, Hereditary Sensory and Autonomic Neuropathy Type 2, and Infantile Axonal Neuropathy.