Ground Breaking Treatments for the Most Complex of Cases​

Providing high caliber academic medicine and treatments to our patients, with the personalized feel of a private practice.

Do you want to...

Meet our team?


See What Some of Our Patients Say

Dr Mortazavi saved my brother’s life. He has more skill in one finger than most doctors! Paramedics said he wouldn’t make it, ICU at Northridge hospital said he would not make it. Dr mortazavi when contacted immediately had an ambulance pick him up from another hospital and put my brother back together. He's talking and walking almost perfect. The guy is a life saver. I don't work for the hospital or his staff. He may be the best neurosurgeon in the USA!

Chris Hubbard in LA, CA – Apr 25, 2019

Dr. Mortazavi is a wonderful doctor, and he is caring, understanding and compassionate. I was in a terrible accident and it weren't for him i could have recovered and I’m so grateful for him and all he did for me and anyone who is in need for his care would be lucky to have him for a doctor. I could never thank him enough for all he has done for me.

Sue M in CA – Jun 08, 2018

We have been very happy with the care and expertise provided by Dr. Mortazavi and California Institute of Neuroscience office. Dr. Mortazavi is extremely skillful surgeon and has a great attitude. He performed a brain surgery for my father, removing a glioblastoma tumor and results were great. He continuously monitors my father's condition and always ready to do whatever is necessary to make things better.

Vlad in Los Angeles, CA – May 22, 2017

Dr Mortazavi did not waste a single precious minute when offering to save my son's life, He is incredibly skilled. Has superb education, knowledge and experience. Dr. Mortazavi performed a cranioectomy on my only child, a trial attorney, on July 10 and then a cranioplasty on Aug 3. Every single physician who we have seen since then has praised the amazingly good result. Consider yourself lucky if you ever end up in the very capable hands of this neurosurgeon.

Elisabet Bafverfeldt DDS in Thousand Oaks, CA – Oct 13, 2016

I was in a car accident 2 years back and it has been a nightmare ever since. Dr. Armstrong and his team made coming in for a consult easy and explained each of the form and potential treatment options. They even worked with my insurance company to confirm the coverage was there which was a big relief. Dr. A is amazing and made me feel like I was his only patient.

Jose in Manhattan Beach, CA – Sep 21, 2018

Dr Mortazavi is not only incredibly knowledgeable and skilled at his profession, he is very caring and kindhearted as well.
He is dedicated and really cares about his patients and families. His office staff is also extremely professional and conscientious.
I promise you---you will be in highly skilled and trustworthy hands!

Irvine, CA. Ghazaleh A.

National Institute of Neuroscience  specializes in treating a full spectrum of Brain and Spine diseases, including complex tumors and vascular lesions of the brain and the spinal cord.