Biography & Education

  • Neurological surgery
  • Neurology
  • Vascular neurology
Education Background
Medical School: Case Western Reserve University
Residency: University of Washington
Fellowship: Department of Neurosurgery, University of Bern, Switzerland
  • English

Care Locations

550 17th Ave.
Swedish Neuroscience Institute, Suite 500
Seattle, WA 98122
Fax 206-320-2827
550 17th Avenue
Suite 110
Seattle, WA 98122
Fax 206-320-3471
Accepting New Patients
Accepting Medicaid



Click here for published research.


Treating Arteriovenous Malformations to Remove the Risk of Rupture

June 28, 2013
An arteriovenous malformation (AVM) in the brain is a relatively rare condition – occurring in less that 1 percent of the population. It can, however, be neurologically morbid in young adults ages 15 to 20, who are at the greatest risk for hemorrhage and least likely to exhibit symptoms. About 2 to 4 percent of all AVMs each year hemorrhage. An AVM’s tangled mass of blood vessels, which forms in utero, produces multiple direct connections between arteries and veins without the normal, intervening capillaries. Symptoms often are not present until later in life or until after the AVM ruptures. A small number of congenital syndromes, such as Sturge-Weber, Rendu-Osler-Weber, ataxia telangiectasia, and Wyburn-Mason, are associated with AVMs. Once formed, extrinsic factors, such as arterial shunting, growth factors and intracranial hemorrhage, may alter the size and shape of an AVM. The most common types of AVMs are:

Using Ultrasound for Treatment of Brain Hemorrhage

January 26, 2012
In September, I co-authored this cover article in the Journal of Neurosurgery on the results of a study using ultrasound for the treatment of brain hemorrhage. The study involved 33 patients with spontaneous intracerebral hemorrhage who were screened for inclusion in a SNI clinical study known as “SLEUTH” (Safety of Lysis with Ultrasound in the Treatment of Intracerebral and Intraventricular Hemorrhage). You can the abstract and full text of the article or see background information on the study, and watch a related video on WebMD.

Detecting cerebral microemboli with transcranial doppler

March 14, 2011
Since its introduction in 1982, transcranial doppler ultrasound (TCD) has evolved into a por­table, multimodality, noninvasive method for real-time imaging of intracranial vasculature. The detection of cerebral microemboli is among the more remarkable capabilities of TCD. Emboli create countable signals in the ultrasound display due to the higher reflection of sound waves compared to the blood cells. Experimental mod­els have shown a high sensitivity and specificity for detection of a variety of substrates, including thrombotic, platelet and atheromatous emboli. Microembolic signals (MES) within the in­tracranial vasculature are most frequently identi­fied in patients with large-vessel atherosclerotic disease, such as carotid stenosis. They have also been reported in intracranial arterial stenosis, ar­terial dissection, cardiac disease and atheroaortic plaque. Additionally, they have been...


Clinical Interests
  • Adult Complex Mimimally Invasive Spinal Disorders
  • Aneurysmal Arterial Disease
  • Aneurysms
  • Aneurysms (Brain/Cerebral)
  • Arteriovenous Bypass
  • Arteriovenous Malformations
  • Auto Accidents-Back/Neck pain
  • Back Injuries
  • Back/Spine Injuries
  • Back/Spine Surgery
  • Brain Surgeons
  • Brain Tumor Treatment
  • Carotid End Arterectomy
  • Carotid Endarterectomy
  • Carotid Surgery
  • Cerebrovascular Disease Surgery
  • Cerebrovascular Disease Surgery
  • Cerebrovascular Diseases
  • Cervical Spine Problems/Proc.
  • Cervical/Lumbar Degen. Disorders
  • Clinical Trials
  • Craniocervical Junction Disorders
  • Craniocervical Junction Surgery
  • CyberKnife
  • Disc Problems
  • Disc Replacement
  • Gamma Knife
  • Lumbar Fusion
  • Lumbar Spine Trauma/Disease
  • Microvascular Surgery
  • Minimally Invasive Spine Surgery
  • Neck Disorders
  • Neck Injuries
  • Neurosurgeons
  • Neurosurgeons at the Swedish Neuroscience Institute
  • Neurosurgery
  • Physicians
  • Radiosurgery (CyberKnife & Gamma Knife) Physicians
  • Spinal Cord Injury
  • Spinal Disorders
  • Spine Surgeons
  • Spine Surgeons
  • Spine Surgery
  • Spine Surgery
  • Spine Tumor/AVM Embolization
  • Stroke Thrombolysis
  • Swedish Neuroscience Institute
  • The Ben and Catherine Ivy Center for Advanced Brain Tumor Treatment
  • Tumors (Spine and Cranial)


Patient Ratings and Comments
About Our Survey

The Patient Rating score is based on responses given during the CAHPS Patient Experience Survey. Responses are measured on a 10-point scale, with 10 being the best score. These scores are then translated to a 5-point scale in order to display results in a 5-star rating. Comments are also gathered from the same survey and displayed in their entirety with the exception of any language that may be considered slander, libel or contain private health information, which will be removed prior to publishing the comments.

4.4 out of 5 (81 Ratings, 12 Comments)


My doctor and the nurse practitioner were very thorough, cordial and I was satisfied with their explanation of my health issues.
Swedish Patient

Needed more time.
Swedish Patient

They took good care of me.
Swedish Patient

This was probably the worst experience we have ever had! The patient was physically and emotionally exhausted after as were the family members that accompanied him.
Swedish Patient

Dr Newell is outstanding! I have complete confidence in his ability and cannot say enough about the improvement he has made in my life. Because of his medical prowess, my family and I will travel across the state to Swedish for our major medical needs.
Swedish Patient

everyone did a great job
Swedish Patient

I felt doc was rushed, but understand.
Swedish Patient

Dr. Newell came highly recommended and completely lived up to his reputation.
Swedish Patient

Provider put me at ease with my diagnosis.
Swedish Patient

Very good experience.
Swedish Patient

I like the fact that the doctors at swedish hospital have treated me like i was a human being and not as a poor person or an addict trying to get pain meds. They've taken the time to explain things and took the time to listen to my questions and concerns.
Swedish Patient

He explained the need for me to see a recommended DR., and why. He followed through on sending over the referral, but I was denied and now do not know where to turn.
Swedish Patient