L. Rodney Anderson, MD Medical Lead Investigator image

L. Rodney Anderson, MD Medical Lead Investigator

A graduate of the University of Arizona College of Medicine, Dr. Anderson is board-certified in both neurology and vascular neurology. He completed his neurology residency as well as a stroke and cerebrovascular disease fellowship at the University of Arizona.

Prior to joining Carondelet Neurological Institute, Dr. Anderson held an appointment as an Assistant Professor of Clinical Neurology at the University of Arizona, where he was a co-director of the Comprehensive Stroke Team and a neurosonologist in the vascular lab. He has been a principal investigator and co-investigator in numerous clinical research trials involving both the acute treatment and prevention of stroke.

Dr. Anderson has been board certified by the American Board of Psychiatry and Neurology since 2000, and recently was re-certified in 2010. He received his vascular neurology board certification in 2009. He is a professional member of both the American Academy of Neurology and the American Stroke Association.

Dr. Anderson is currently in private practice with Western Neurosurgery, Ltd. He remains active as a neurosonologist interpreting transcranial Doppler studies at the Carondelet Neurological Institute where he is also the director of vascular neurology. He is a member of the Brain Attack Team helping lead the Carondelet Neurological Institute in obtaining Primary Stroke Center certification/recertification as well as providing telestroke coverage to Southern Arizona. He practices both vascular and general neurology.


Diana Benenati, MD image

Diana Benenati, MD Sub-investigator

Dr. Benenati specializes in general neurology, EMG and neuromuscular diseases. She obtained a B.S. from the University of California and, in 1997, graduated with an M.D. from the University of Minnesota School of Medicine, Minneapolis.

Dr. Benenati completed her residency in neurology at the University of Arizona, and pursued a fellowship at the University of Arizona in neuromuscular disease and EMG. She is an active member of the American Academy of Electrodiagnostic Medicine.


William Lujan, MD Sub-investigator image

William Lujan, MD Sub-investigator

Dr. Lujan is a board-certified neurologist who works at Western Neurosurgery, Ltd. He is a general neurologist who evaluates and treats a variety of neurologic disorders, both in the hospital setting as well as in the clinic, including stroke, Parkinson’s disease, tremor, multiple sclerosis, epilepsy, headaches, peripheral neuropathy, myasthenia gravis, Alzheimer’s disease and other dementias, neuropathic pain and fibromyalgia. He is skilled in performing electromyography and nerve conduction studies which are utilized in the diagnosis of a number of neurologic conditions.

Dr. Lujan is a graduate of the University of Arizona, where he received a B. S. in general biology before earning his M.D. from the University of Arizona College of Medicine. He then completed a neurology residency at Wilford Hall USAF Medical Center in San Antonio, Texas. Dr. Lujan served as a staff neurologist in the United States Air Force for three years at RAF Lakenheath in the United Kingdom and for one year at Wright-Patterson Air Force Base in Dayton, Ohio. In 2000, Dr. Lujan returned to Tucson and became the first neurologist on the staff of Western Neurosurgery. He is a member of the American Academy of Neurology as well as the American Medical Association, the Arizona Medical Association and the Pima County Medical Society. He enjoys teaching both medical students and resident physicians in the clinic and in the hospital. Dr. Lujan is married with two children.

In addition to our main clinic location, Dr. Lujan practices general neurology at our Green Valley satellite clinic, and EMGs at our Northwest satellite clinic.


David Siegel, MD Sub-investigator image

David Siegel, MD Sub-investigator

Dr. Siegel earned his medical degree from the University of California at Los Angeles. He completed his internship in Internal medicine at Sepulveda V.A. Hospital in Sepulveda, CA. He then completed a residency in neurology at Oregon Health Sciences University in Portland, Oregon followed by a clinical neuromuscular fellowship at Hahnemann University in Philadelphia, PA.

Dr. Siegel is certified by the American Board of Psychiatry and Neurology. He has practiced neurology in Tucson since 1986 and has been with Western Neurosurgery since 2003.

Dr. Siegel specializes in adult neurology with a special interest in cognitive disorders including Alzheimer’s, dementia and electromyography/nerve conduction studies.



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