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223 N. Van Dien Avenue Ridgewood, NJ 07450
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The Valley Hospital
223 N. Van Dien Avenue
Ridgewood, NJ 07450

Physician Team


Sean Lavine, M.D., Director of Neurointerventional Services

Dr. Lavine serves as Clinical Co-Director of Neuroendovascular Services at the Columbia University Medical Center, New York Presbyterian Hospital, where he is also Assistant Professor of Neurological Surgery and Radiology, and Clinical Co-Director, Neuroendovascular Services. He graduated from Cornell University Medical College and performed his residency training at the University of Southern California where he also conducted fellowship training in neuroendovascular surgery and neurointerventional radiology. He is board certified in neurological surgery.

Dorothea Altschul, M.D.

Dr. Altschul is an interventional neurologist with specialized training in interventional neuroradiology and vascular neurology. She completed her residency training at Albert Einstein College of Medicine, Montefiore Medical Center. She then went on to conduct fellowship training at Harvard Medical School, Massachusetts General Hospital and at Columbia College of Physicians & Surgeons. Dr. Altschul is board certified in neurology and vascular neurology. She is Clinical Assistant Professor of Neurology in Neurosurgery at Columbia University Medical Center. As part of the excellent neurovascular/endovascular physician team at Valley Hospital, she treats patients with vascular diseases of the brain and spinal cord at Valley Hospital.

Philip M. Meyers, M.D., F.A.H.A

Dr. Meyers is Director of Neuroendovascular Service/Interventional Neuroradiology at New York Presbyterian Hospital/Columbia University Medical Center. Dr. Meyers graduated magna cum laude from Harvard University School of Arts and Sciences and received his medical training at Case Western Reserve, School of Medicine, Cleveland, OH. A Clinical Fellow in Neuroradiology, Dr. Meyers has extensive experience teaching and practicing at such prestigious teaching hospitals as New York Presbyterian/Columbia University Medical Center, University of California San Francisco Medical Center, University of Minnesota Medical Center, and University of Cincinnati Medical Center.

Daniel Sahlein, M.D.

Dr. Sahlein specializes in the endovascular treatment of intracranial, skull base/neck, and spinal vascular disease using advanced minimally invasive, image-guided technologies. Particular areas of interest include intracranial aneurysms, brain arteriovenous malformations, and dural arteriovenous fistulas of the skull base and spinal cord. Working closely with a world-renowned neurovascular team including Drs. Robert Solomon, E. Sander Connolly, Philip Meyers, Sean Lavine, and Dorothea Altschul, Dr. Sahlein and the neurovascular specialists offer unparalleled multidisciplinary care. Dr. Sahlein is boarded in Neurology, Radiology, and Diagnostic Neuroradiology, and completed subspecialty fellowship training in Interventional Neuroradiology as well. Research interests include brain arteriovenous malformations and complex aneurysms.

Daniel Walzman, M.D.

Dr. Walzman graduated from Rutgers University. While in Medical school he received the Michael David Rothstein Memorial Scholarship Award for Achievement in Neurological Disciplines and was also elected to the Alpha Omega Alpha National Honor Medical Society. Dr. Walzman completed his surgical internship at Mt. Sinai Medical Center in New York. He completed his Neurosurgical training there as well. Dr. Walzman is board certified in neurosurgery.
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