PNI building exterior

Our Center

We provide expertise, collaboration and innovation as essential components for the best possible care of patients with stroke, brain aneurysms and vascular malformations.

Why Pacific Stroke and Neurovascular Center?

The Pacific Stroke and Neurovascular Center offers leading-edge treatments for all types of neurovascular disorders including:

  • Stroke
  • Intracerebral hemorrhage
  • Intracranial brain aneurysms
  • Arteriovenous vascular malformations

Our expert team provides personalized, comprehensive care using minimally invasive endovascular treatments, microvascular neurosurgery, and noninvasive adjuvant therapies, with expertise, collaboration and innovation as essential components for the best possible care.

If you, a family member, or a friend has been diagnosed with a strokebrain aneurysm or vascular malformationour team of experts is here to help you understand your condition and determine an optimal, personalized treatment plan for your needs. 

Our specialists in neurosurgery, neurology, interventional neuroradiology, and neurocritical care offer a team-based approach to the personalized, comprehensive care of all patients with neurovascular needs, including the most challenging neurovascular conditions.

Our aim is to provide patients with a connected experience of care built on clinical and research excellence.

Our Center of Excellence

Minimally invasive, personalized treatment

For patients who require treatment for stroke, aneurysms or vascular malformations, our comprehensive team of neurosurgeons, stroke neurologists and interventional radiologists offer all forms of advanced therapy, including minimally invasive endovascular treatments, microvascular neurosurgery, and noninvasive adjuvant therapies.

Endovascular treatment and micro-vascular neurosurgery allow our surgeons to safely approach even the most difficult regions of the brain with the smallest possible incisions. 

  • Endovascular techniques use fine catheters threaded through blood vessels in the lower body to reach blockages in the brain. 
  • Microvascular approaches involve minimally invasive neurosurgery to repair damage caused by stroke, aneurysms or vascular malformations. 

Our unique expertise includes extracranial-to-intracranial bypasses, complex vascular malformation microsurgery, deep cavernous malformations and uncoilable complex aneurysm surgery. This broad expertise and multidisciplinary approach allows our team to provide optimal treatment for each individual patient.

Experienced physician leaders

Four center directors cover the extensive footprint of PNI Neurovascular Services across Southern California: Drs. Jason Tarpley, Samuel Hou, Walavan Sivakumar, and Aditya Iyer

Our physician-scientists are leaders in the field, with extensive track records publishing medical literature that defines new standards of care and pushes innovative new techniques in precision therapy, including garnering numerous awards for clinical and research excellence.

Our dedication to academic research is based on a commitment to improving clinical treatment options and quality of life for every one of our patients.

Dr. Jason Tarpley’s thrombectomy research was cited in the Wall Street Journal.

Award-winning hospitals

Providence Saint John’s Health Center is an Advanced Primary Stroke Center and Thrombectomy-Capable Stroke Center. It is the first center to receive this level of designation in LA County.

Providence Little Company of Mary Medical Center Torrance and Providence Saint Joseph’s Medical Center in Burbank are Comprehensive Stroke Centers.

Our affiliated hospitals have state-of-the-art operating suites and specialty neurovascular staff dedicated to the care of patients with stroke, brain aneurysms and vascular malformations.

Stroke Center Awards

Providence Saint John’s Health Center also holds the Get With The Guidelines® – Stroke Gold Plus Quality Achievement Award and Target: Stroke Elite Plus Honor Roll.

This award recognizes our commitment and success in implementing a high standard of stroke care by ensuring that our stroke patients receive treatment that meets nationally accepted, evidence-based standards and recommendations.

The center’s state-of-the-art facilities include our catheterization laboratory (cath lab) and surgical suites. Our medical specialists provide diagnosis and treatment in the cath lab which houses diagnostic imaging equipment to visualize arteries, chambers of the heart and any abnormalities present.

In cases where surgery is indicated, neuro-interventional surgeons use advanced minimally invasive approaches such as catheter-based techniques to treat our patients. 

Our expert team of neurovascular specialists works together closely on all aspects of care for each individual patient, from diagnosis to treatment to 24/7 availability during clinical follow-up.

Contact Us

The Pacific Stroke and Neurovascular Center’s state-of-the-art facilities are located at:

Providence Saint John’s Health Center
2125 Arizona Ave., Santa Monica, CA 90404

Providence Little Company of Mary Medical Center Torrance
4201 Torrance Blvd., Suite 520, Torrance, CA 90503

Providence Saint Joseph Medical Center
501 S. Buena Vista Ave., Burbank, CA 90505

Providence Holy Cross Medical Center
15031 Rinaldi St, Mission Hills, CA 91345