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Meet Our Team

Ron L. Alterman, MD
Chief, Neurosurgery

Ron L. Alterman, MD, assumed the role of Chief of Neurosurgery at BIDMC in the Fall of 2011. He came to BIDMC from the Mount Sinai School of Medicine, where he served as Director of Functional and Restorative Neurosurgery and was Professor of Neurosurgery.

Dr. Alterman received his MD from the Albert Einstein College of Medicine in New York. He completed an internship in General Surgery at Washington University - St. Louis and a residency in Neurosugery at Montefiore Medical Center. He was the first Fellow in Stereotactic and Functional Neurosurgery at New York University and, in 2002, received an MBA from Columbia University.

Dr. Alterman is an international leader in the application of deep brain stimulation (DBS) for the treatment of movement disorders and has performed nearly 1,000 DBS implants. He is also a recognized expert in stereotactic tumor resection.
Dr. Alterman's Harvard Catalyst Profile

Jeffrey Arle, MD, PhD
Associate Chief, Neurosurgery

Jeffrey Arle, MD, PhD, FAANSIn June 2012, Dr. Arle joined the Division of Neurosurgery. Dr. Arle completed the MD-PhD program at the University of Connecticut, where he received his doctorate in the neurosciences. After an internship in general surgery and a residency in neurosurgery at the University of Pennsylvania, Dr. Arle completed a fellowship in epilepsy and movement disorder surgery at New York University.

Dr. Arle's clinical interests include neuromodulation, epilepsy, pain, neuroprosthetics, complex spine disorders, and brain tumors. He was the first in New England to perform deep brain stimulation (DBS) surgery for patients with Parkinson's disease and dystonia, and the first in the world to use intradiscal stimulation for patients suffering from back pain. Before coming to BIDMC, Arle was a senior staff neurosurgeon at Lahey Clinic, where he also served as Director of Functional Neurosurgery and Director of Neurosurgery Research.  
Dr. Arle's Harvard Catalyst Profile 

Ekkehard M. Kasper, MD, PhD
Co-Director, BIDMC Brain Tumor Center 
Director, Neurosurgical Oncology, BIDMC Cancer Center
Co-Director, CyberKnife Center 
Dr. Ekkehard KasperDr. Kasper's major clinical and research interests focus on brain tumors, radiosurgery, and functional disorders such as epilepsy. He is the co-investigator of numerous clinical trials for patients with specific types of brain tumors.

Prior to joining BIDMC, Dr. Kasper was an attending neurosurgeon at Massachusetts General Hospital, where he did his internship and residency in neurosurgery. A native of Germany, Dr. Kasper also trained at the University of Freiburg Medical School, and received a Rhodes Scholarship to obtain a doctoral degree in neurobiology at Oxford University.
Dr. Kasper's Harvad Catalyst Profile

Christopher Ogilvy, MD
Director, BIDMC Brain Aneurysm Institute
Director, Endovascular and Operative Neurovascular Surgery

Dr. Ogilvy received his medical degree from Dartmouth Medical School and completed his residency in neurosurgery at Massachusetts General Hospital. He completed his fellowship in endovascular neurosurgery at State University of New York at Buffalo School of Medicine.

Dr. Ogilvy's clinical interests include intracranial aneurysms,intracranial and spinal arteriovenous malformations (AVMs), extracranial and intracranial (carotid and vertebral) atherosclerotic disease, cavernous malformations (brain and spinal cord), Moya-Moya disease, acute stroke (thrombolysis), brain hemorrhage, and other brain vascular malformations.
Dr. Ogilvy's Harvard Catalyst Profile

Efstathios Papavassiliou, MD 

Dr. Efstathios PapavassiliouA native of Greece, Dr. Papavassiliou received his MD from the University of Athens School of Medicine and did his residency at Hahneman/MCP University in Philadelphia, Pennsylvania, and the Medical College of Wisconsin-affiliated hospitals in Milwaukee, Wisconsin. He completed a fellowship in neurological surgery at the University of California (San Francisco) Medical Center in California.

Dr. Papavassiliou's clinical interests include movement disorders, epilepsy, spine surgery, and microvascular decompression.   
Dr. Papavassiliou's Harvard Catalyst Profile

Martina Stippler, MD
Director of Neurotrauma

Dr. Stippler received her medical degree from Leopold Franzens University in Innsbruck, Austria, and completed a neurological surgery residency at the University of Pittsburgh Medical Center, where she also earned a MSc degree in clinical science. Dr. Stippler was Assistant Residency Program Director and Director of Neurotrauma at the University of New Mexico (UNM) Health Sciences Center in Albuquerque, NM. At UNM she introduced teleradiology-enhanced phone consultation for mild traumatic brain injury (TBI), and facilitated the development of a multidisciplinary spine and pituitary clinic for patients with complex neurosurgical illness.

Dr. Stippler’s clinical areas of expertise are neurotrauma, complex and minimally invasive spine surgery, and endoscopic pituitary surgery. Her research and education efforts are focused on using multimodality monitoring data to predict brain swelling and advanced imaging to triage mild TBI. She also has a background in medical ethics.

Ajith J. Thomas, MD
Co-Director, BIDMC Brain Aneurysm Institute
Program Director, Neurointerventional Fellowship

Ajith J. Thomas, MDDr. Thomas received his medical degree from Christian Medical College in Vellore, India. He did his internship at Christian Medical College-Vellore and the University of North Dakota, and his residency at Mayo Clinic Rochester in Minnesota and Henry Ford Hospital in Michigan. Dr. Thomas completed a fellowship in interventional neuro-radiology at the University of Pittsburgh Medical Center in Pennsylvania. Dr. Thomas's major clinical interests are subarachnoid hemorrhage, aneurysms, stroke, arteriovenous malformations, trigeminal neuralgia, and peripheral nerve disorders.
Dr. Thomas' Harvard Catalyst Profile

Edwin Fischer, MD

Dr. Edwin FischerDr. Fischer received his medical degree from Columbia University College of Physicians and Surgeons in New York. He did his internship at University Hospitals of Cleveland and his residency at University Hospitals of Cleveland and Boston Children's Hospital. Dr. Fischer's clinical interest is general neurosurgery.  
Dr. Fischer's Harvard Catalyst Profile

Outpatient Nurse Practitioners

Deirdra Buckley, MS, RN, ANP-c
Brain Aneurysm Institute 

Jan Fleischmen, NP

Inpatient Nurse Practitioners & Physician Assistants

Emily Azzalino, PA-C
Andrew Busler, NP
Nicole Catatao, NP Clinical Manager of Neurosurgery
Diane DiNobile, NP 
Shiva Kashanipour, PA-C
Jason Kiaffas, NP
Ruth Navedo, NP
Natasha Poylin, NP
Erin Rebelo, PA-C
Tara Rukstalis, NP
Kim Soorajbally, PA-C
Lisa Williams, NP

Contact Information

Department of Surgery
Beth Israel Deaconess Medical Center
West Campus, Lowry Medical Office Building, Suite 3B
110 Francis St.
Boston, MA 02215