Zachary T. Levine, M.D., is a board-certified neurosurgeon and fellow of the American Academy of Neurological Surgery. He has advanced training in cranial base surgery and stereotactic/functional surgery for movement disorders and epilepsy. In addition, he has extensive experience in Deep Brain Stimulation (DBS), image-guided, computer assisted microsurgery, minimally invasive spinal surgery and artificial disc replacement. After serving as the Director of Neurosciences and Neurosurgery at Holy Cross Health from 2012-2022, he is now the Director of Neurosciences at Adventist Healthcare.

In the constantly innovating field of neurosurgery, Dr. Levine keeps up.

Dr. Levine was the first to perform Focused Ultrasound treatment of tremor and minimally invasive brain surgery using the BrainPath system in the metropolitan D.C. region, and has been a leader in the neuromodulation/DBS community worldwide. Dr. Levine proctors other surgeons performing DBS, locally and internationally. He is a key opinion leader on the topic and served on the technical advisory board of the company that makes the only DBS devices approved for use by the FDA.
A graduate of Dartmouth College, Dr. Levine completed medical school at New York University School of Medicine in the honors program. He did his residency in neurological surgery at the George Washington University Medical Center.

Dr. Levine has taught cranial base surgical approaches at national meetings.

Dr. Levine collaborates with the National Institutes of Health, Medical Neurology Branch. His clinical research in skull base surgery, cerebrovascular surgery, and functional neurosurgery has been published in peer-reviewed journals and textbooks. He patented a technique for cellular transplantation in neurodegenerative diseases and movement disorders. He holds memberships in a number of professional societies including the American Association of Neurological Surgeons, North American Skull Base Society, and the American Society of Stereotactic and Functional Neurosurgery. He is also an alumnus member of the Osler Society. He serves on the medical advisory board of the Parkinson Foundation of the National Capital Area and on Parkinson Action Network board of directors. His efforts in neurosurgery have been recognized by induction into the Alpha Omega Alpha Medical Honor Society. He has received both the Singer and Resident research awards for his original clinical research in neurosurgery. The Dystonia Association awarded Dr. Levine their Humanitarian Award in 2010 for his efforts in the treatment of dystonia. The Washingtonian has awarded Dr. Levine the title of Top Doctor since 2005. Dr. Levine is currently licensed in the District of Columbia, Maryland, and Virginia.

Dr. Rhee is a board certified neurosurgeon and has fellowship experience in minimally invasive and complex spine surgery, spinal deformity correction, as well as spinal oncology. His interests include but are not limited to, the treatment of degenerative disc disease, spinal deformities, brain and spine oncology, brain and spine stereotactic radiosurgery, cervical disc arthroplasty, and Chiari malformation.

Dr. Rhee serves as the Director of the Neurosurgical Spine Service at Holy Cross Health.

Dr. Rhee graduated with honors in chemistry and history from SUNY Binghamton. He completed his medical degree at Tufts University School of Medicine, where he was inducted into the Alpha Omega Alpha medical honor society. His education continued on to Georgetown University Hospital where he completed his residency in Neurological Surgery as well as a fellowship in Minimally Invasive Spine Surgery. In addition, he completed a junior instructorship at Johns Hopkins Hospital focusing on the treatment of complex spine pathology, spinal deformity, and spinal oncology. Dr. Rhee has clinical research experience and is published in peer reviewed journals, as well as neurosurgical textbooks. With his expertise, he teaches courses in spinal surgery to orthopedic surgeons and neurosurgeons alike. He holds membership in the American Academy of Neurological Surgeons and the Congress of Neurological Surgeons.

Dr. Herzig double majored in Chemistry and Biochemistry at NC State University. He worked at St. Jude Children’s’ Research Hospital in Memphis prior to earning his MD from the University of Tennessee. He completed his neurosurgical residency at Georgetown in 2014, with sub-specialty training in Minimally Invasive Spine and Neurointerventional Surgery. Dr. Herzig serves as the Director of Neurosurgery at Holy Cross Health.

Dr Herzig has been appointed to the Political Engagement Committee for the North American Spine Society (NASS).

The North American Spine Society (NASS) is a multidisciplinary society that furthers the science, outcome, and progress of spinal surgery. As a member if this committee Dr. Herzig will be assisting NASS and its relationship with government institutions. This should help with access, funding, and research for spinal surgery and disorders. Dr. Herzig is affiliated with Holy Cross Hospital, Suburban Hospital, and Holy Cross Germantown Hospital. In his spare time, Dr. Herzig enjoys spending time with his wife Jamie, sons Knox and Duke, and their rescue dogs Dug and Lola.

Aviva Ellenstein, M.D. Ph.D. is a board-certified neurologist and a neuroscientist with advanced training in movement disorders and Parkinson’s disease.  She is an award-winning doctor with expertise diagnosing, treating, and improving the lives of her patients. A Washingtonian magazine Top Doctor, she is recognized regionally for her excellent care of people living with Parkinson’s disease and related disorders, essential and other tremors, blepharospasm and other dystonias, ataxias, functional movement disorders, restless leg syndrome, tic disorders, hemifacial spasm, and other abnormal movement conditions.  She has provided Botulinum toxin chemodenervation therapy for over a decade. In support of patient health and wellbeing, she offers care both in person and through telemedicine.

Education and Experience

Dr. Ellenstein pursued her undergraduate education at Bryn Mawr College, where she studied chemistry and religion and graduated cum laude in 1995.  She completed a combined M.D.-Ph.D. training program focused on neuroscience and biochemistry at Boston University School of Medicine in 2004. She completed neurology residency at Boston Medical Center in 2008 and movement disorder fellowship under the mentorship of Dr. Mark Hallett at the National Institutes of Health in 2012. She then joined the George Washington University Department of Neurology, where she founded the Parkinson’s Disease and Movement Disorders program and enjoyed a productive career as a clinician-educator. In 2022 Dr. Ellenstein started the Parkinson’s Disease and Movement Disorders Neurology program at the Washington Brain and Spine Institute. She works with an exceptional team of clinical neuroscience colleagues who are dedicated to providing expert neurologic, neurosurgical, pain management, and rehabilitative care.

Dedication to Community

Dr. Ellenstein is an award-winning medical educator who brings her passion for teaching to her clinic and community.  She not only works with her patients to ensure they understand the reasoning behind and expectations for their specific treatment plans, but she also collaborates with a multi-disciplinary group of physicians who serve on the Medical Advisory Board of the Parkinson Foundation of the National Capital Area, an organization dedicated to enhancing knowledge, health, and wellbeing of those living with Parkinson’s disease. In support of future colleagues and practicing physicians, she has spearheaded several initiatives and contributed to programs that promote mentoring and career development, including the Student Interest Groups in Neurology at Boston University and George Washington University, the Mentoring for Mom and Dad Clinicians and Scientists program National Institutes of Health, the American Neurological Association e-Mentoring Task Force, and the American Academy of Neurology Burnout Task Force.