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Neurologists

Tarek Zakaria, MD

Neurologist

Dr. Tarek M. Zakaria is a board-certified neurologist who specializes in neurophysiology and epilepsy.

Prior to joining Memorial Healthcare System, Dr. Zakaria served as the director of the epilepsy program and as co-director of the epilepsy surgery program at Norton Neuroscience Institute in Louisville, Kentucky.

Dr. Zakaria earned his medical degree from Damascus University in 1998, and completed his internship in internal medicine at West Virginia University Charleston Area Medical center in 2005. He completed his residency in neurology at the University of Cincinnati Medical Center in 2008. He completed his fellowships in neurophysiology and in epilepsy at the Mayo Clinic College of Medicine, where he later served as assistant professor.

Seth Tarras, MD

Neurologist

Dr. Seth C. Tarras is a board-certified neurologist.

After graduating from Stanford University with a degree in biology, he earned his medical degree from the Mount Sinai School of Medicine in New York. He completed his internship at Beth Israel Medical Center in New York in 1985, and completed his residency in neurology at the University of Miami/Jackson Memorial Hospital in 1988. He completed his neuromuscular fellowship at the University of Miami/Jackson Memorial Hospital in 1989.

Prior to joining Memorial, Dr. Tarras served as assistant professor of neurology at Hahnemann University Hospital in Philadelphia, and as director of Neurologic Consultants, P.A., an EMG lab and ALS clinic in Fort Lauderdale He has been practicing in Broward County for more than 20 years.




Neurosurgeons

Greg Zorman, MD, FACS

Neurosurgeon

Dr. Zorman is a graduate of Cornell University Medical College. After completing an internship in general surgery and a residency in neurosurgery, he had an interdisciplinary postdoctoral fellowship in physiology and neuroscience, all at the University of California San Francisco School of Medicine.

Before joining Memorial Healthcare System as a neurosurgeon in 1986, Dr. Zorman had a private practice in Broward County, Florida. Since then, he has acquired two decades of experience in leadership positions at Memorial and at numerous state, regional and national medical organizations.

Dr. Zorman is a former Chief of Staff for Memorial Regional Hospital. He presently serves as the Chief of the Neurosurgery Division of the Healthcare System.

Dr. Zorman is board-certified by the American Board of Neurological Surgery. He is a fellow of the American College of Surgeons and serves on the board of directors for Memorial Foundation and Joe DiMaggio Children's Foundation.

Christopher R. DeMassi, MD

Neurosurgeon

Dr. DeMassi is a graduate of Georgetown University School of Medicine in Washington, D.C.; and he earned a Master of Science degree in physiology and biophysics at Georgetown University. He completed his internship in general surgery, a residency in neurological surgery and a fellowship in complex and minimally invasive spine surgery at the University of Miami/Jackson Memorial Hospital.

Dr. DeMassi completed a surgical independent study at Massachusetts General Hospital and Boston Medical Center. He also has expertise in deep brain stimulation, and in treatment for brain tumors and head trauma.

Dean Hertzler, MD

Pediatric Neurosurgeon

A graduate of Indiana University School of Medicine, Dr. Dean Hertzler completed his internship in surgery and residency in neurosurgery at the University of Cincinnati. He completed his fellowship in pediatric neurosurgery at Primary Children’s Hospital in Salt Lake City, one of the largest fellowship programs in pediatric neurosurgery in the United States.

He performed more than 1,000 pediatric neurosurgical procedures annually. Prior to medical school and his neurosurgical residency, Dr. Hertzler was a research, laboratory and teaching assistant at Indiana University-Purdue University Indianapolis, where he received numerous academic scholarships and awards.

Alexander Poisik, MD, FACS, FAANS

Neurosurgeon

Dr. Poisik is a graduate of Columbia University's College of Physicians and Surgeons. He completed an internship at Emory University in Atlanta, Georgia, followed by a residency in neurosurgery at The Emory Clinic, where he was named the In-Residency Spine Fellow in Complex Spinal Disorders. He later became Chief Resident in Neurosurgery.

Dr. Poisik is a winner of several research grants in the study of cerebrovascular disease. He is an active member of the American Association of Neurological Surgeons. Dr. Poisik is a board-certified neurosurgeon and is the Chief of Neurosurgery West Operations.

Luis A. Rodriguez, MD, FACS

Neurosurgeon

Dr. Rodriguez earned a medical degree from Universidad del Valle in Colombia. He completed internships at the Department of Health in the Republic of Panama and Gorgas United States Army Hospital; residencies in neurosurgery at the University of Puerto Rico and Indiana University Medical Center; and fellowships in neuro-oncology at the University of California.

Dr. Rodriguez has served as Assistant Professor of Neurosurgery at the University of California Los Angeles and Chief of Neurosurgery at Olive View Medical Center in Los Angeles. He is board-certified in neurosurgery.

Linda Sternau, MD

Neurosurgeon

Dr. Sternau received her medical degree from the State University of New York (SUNY) School of Medicine in Buffalo, New York. She completed her residency in neurosurgery at Case Western Reserve University in Cleveland, Ohio, and a fellowship in neuro-ophthalmic surgery at Allegheny General Hospital in Pittsburgh, Pennsylvania. Prior to joining Memorial Healthcare System, Dr. Sternau was Chief of Neurosurgery at Mount Sinai Medical Center in Miami Beach.

She has conducted funded research on cerebral ischemia and human brain temperature following head injury. Dr. Sternau was also recognized as a Woman of Vision honoree by the Weizmann Institute of Science, South Florida region, and is listed in the directory of Top Doctors of America for Neurological Surgery.



Interventional Neuroradiologists

Hoang Duong, MD

Interventional Neuroradiologist

Dr. Duong earned a medical degree from McGill University in Montreal. After completing an internal medicine internship at Royal Victoria Hospital in Montreal, he returned to McGill for a residency in diagnostic radiology and a clinical fellowship in diagnostic neuroradiology. He then relocated to New York for a postdoctoral clinical fellowship in interventional neuroradiology at Columbia University and additional studies in biostatistics and epidemiology.

Dr. Duong has taught at McGill University, Columbia University and New York Presbyterian Hospital/ Cornell Medical Center. Prior to coming to Memorial, he was the Assistant Director of Interventional Neurology at Columbia Presbyterian Medical Center in New York City. He is board-certified in radiology.




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