Department of Neurosurgery

Contact Us

For an appointment with the Brain & Spine Institute please call: 

Neurology: 410-601-9515
Neurosurgery: 410-601-4417
Neuropsychological assessment: 410-601-7375
Carroll Hospital’s Stroke Center: 410-871-7000

The Department of Neurosurgery at The Sandra and Malcolm Berman Brain & Spine Institute at LifeBridge Health provides a wide spectrum of services for patients who require surgical treatment for disorders of the brain, spine, and peripheral nervous system. The team's philosophy is to reserve surgical treatment as a last resort after thorough consideration of all appropriate non-surgical treatments.

Following is a list of just some of the disorders that we treat:

  • Arteriovenous malformations
  • Brain tumors
  • Carotid artery disease
  • Cerebral aneurysms
  • Cervical myelopathy, radiculopathy and stenosis
  • Cervical and lumbar spine disorders
  • Epilepsy
  • Hydrocephalus
  • Movement disorders
  • Neck and arm pain
  • Lower back and leg pain
  • Peripheral nerve disorders
  • Spine tumors
  • Spine trauma
  • Stroke
  • Trigeminal neuralgia

Minimally invasive techniques, microsurgery, radiosurgery, and deep brain stimulation are all employed to achieve the best possible outcomes and to improve the health of our patients. We also advise patients in techniques of non-surgical spine care.

Our physicians see patients at 4 locations in Baltimore City, Baltimore County, and Howard County. In the near future, we will be adding offices in Carroll County, Harford County and Frederick County.

For more information or to schedule an appointment with any of our team members, please call 410-601-4417.


Neal J. Naff, M.D., F.A.C.S. Neal J. Naff, M.D., F.A.C.S.
Chief, Department of Neurosurgery, LifeBridge Health, Sinai Hospital of Baltimore
Specialties: Microsurgical treatment of cervical and lumbar spine disorders; Degenerative spine disease; Surgical and radiosurgical treatment of brain and spinal tumors; Hydrocephalus; Peripheral nerve disorders such as carpal tunnel syndrome; Chiari malformations; Spasticity; Spinal cord stimulation

William W. Ashley, Jr., M.D., Ph.D., M.B.A., F.A.A.N.S. William W. Ashley, Jr., M.D., Ph.D., M.B.A., F.A.A.N.S.
Director, Cerebrovascular, Endovascular, and Skull Base Neurosurgery
Chief, Division of Neurointerventional Radiology, Department of Radiology
Specialties: Aneurysms, stroke, brain tumors, arteriovenous malformations, extracranial carotid disease, intracranial atherosclerosis, complex cranial base tumors (including vestibular schwannomas and pituitary tumors), tumor embolization and balloon occlusion testing, as well as general neurosurgical conditions such as degenerative disorders of the cervical and lumbar spine.

James L. Frazier III, M.D., F.A.A.N.S.
Chief, Department of Neurosurgery, Northwest Hospital
Specialties: Minimally invasive spine techniques; Cervical myelopathy, radiculopathy, and stenosis; Lumbar radiculopathy and stenosis; Neck and arm pain, lower back and leg pain; Non-surgical spine care, spine tumors and spine trauma; Spinal cord stimulation
Omar Zalatimo, M.D., M.P.H., M.H.A., F.A.A.N.S. Omar Zalatimo, M.D., M.P.H., M.H.A., F.A.A.N.S.
Director, Functional Neurosurgery
Co-Director, Sinai Hospital Spine Center
Specialties:  Spinal surgery: cervical and lumbar disorders; Functional neurosurgery: trigeminal neuralgia, deep brain stimulation, epilepsy surgery and spinal cord stimulation; Tumor neurosurgery; Peripheral nerve surgery

Daniel L. Jerrems, PA-C Daniel L. Jerrems, PA-C
Spine Specialist
Specialties: Disorders of the spine; neck or back pain with or without radiculitis; radicular pain in the arm or leg