Medical Leadership

Abraham Lieberman, MD, is the medical director of the Movement Disorders Clinic at Barrow Neurological Institute at Dignity Health St. Joseph’s Hospital and Medical Center in Phoenix. He is an alumnus of New York University Medical School, and he completed his residency at New York University Bellevue Medical Center and a pharmacology fellowship at New York University Medical Center in New York City. He is an internationally recognized leader in the diagnosis and treatment of Parkinson’s disease.

Along with Lonnie and Muhammad Ali and philanthropist Jimmy Walker, Dr. Lieberman was instrumental in the conceptualization and realization of the Muhammad Ali Parkinson Center at Barrow Neurological Institute. Dr. Lieberman recognized the need for a comprehensive center to provide cutting-edge treatment for Parkinson’s disease and movement disorders, along with recreational activities, community therapy, and caregiver and patient support networks. Today, this dream has been realized, and the center has been recognized as a National Parkinson Foundation Center of Excellence.

Dr. Chase has 40 years of experience in the discovery and clinical development of new drugs for CNS disease, first at the National Institutes of Health (NIH) and then as founding CEO of Hamilton Pharmaceuticals.

Internationally-recognized neurologist whose career has been dedicated to developing new pharmaceuticals and shepherding them from early stages onto the market.

Dr. Schumacher is a fellowship-trained neurosurgeon and diplomate of the American Board of Neurological Surgery. He completed his medical degree from the University of Washington, Seattle. Dr. Schumacher completed the Halstead Internship in General Surgery at Johns Hopkins Hospital, Baltimore, MD, and a residency in neurosurgery with the Harvard Medical School at Massachusetts General Hospital, Boston. He became a research fellow at Harvard Medical School and was awarded a fellowship at the Yale School of Medicine, New Haven, CT. Dr. Schumacher has published numerous peer-reviewed journal articles related to neurosurgery and neuroscience. He is a member of the American Association of Neurological Surgeons, Congress of Neurosurgery, Society of Neuroscience and numerous other professional medical associations. Dr. Schumacher has served as director of neuroscience for the Sarasota Memorial Healthcare Foundation and is a research associate at Harvard Medical School involved in Stem Cell technology.