Board-Certified Neurosurgeon in West Islip & Smithtown, NY —
Brain Tumors, Spine Surgery & Stereotactic Radiosurgery
Exceptional Brain & Spine Care
We are committed to treating surgical conditions of the brain and spine with state of the art medical expertise, technology, sensitivity and care for the individual and their families.
Brain Conditions
Neurosurgeons treat a number of brain conditions that may require surgical intervention, such as brain tumors, bleeding, hydrocephalus, aneurysms or stroke.
Spine Conditions
While the majority of cases of neck and back pain do not require surgical intervention, a number of patients can benefit from surgical procedures that can alleviate neck, arm, back or leg pain.
Stereotactic Radiosurgery
A minimally invasive technique for delivering high dose radiation in a single or few fractions without delivering significant radiation to healthy normal brain tissue.
We Speak English, Spanish & Greek
We take Insurance
Cutting Edge Surgery
100% Privacy & Comfort
Three Long Island Locations
Latest News from Dr. Missios’ Office
Whether it is our latest blog post, published paper or presentation, here’s where you find it: our Blog.
Time Is Brain: What the First Hours After a Stroke Actually Look Like
By Symeon Missios, MD — Long Island Brain &...
Stereotactic Radiosurgery: The “Surgery” That Doesn’t Cut
By Symeon Missios, MD — Long Island Brain &...
Small Brain Tumors, Big Decisions: When Watching Is Wiser Than Treating
By Symeon Missios, MD — Long Island Brain & Spine It almost always starts the same way. A patient comes in for something unrelated — a persistent headache after a car accident, dizziness that wouldn't go away, a minor fall with a confused moment. A CT or MRI is...
The Spine Surgery You Probably Don’t Need: A Neurosurgeon’s Honest Guide on When to Wait
By Symeon Missios, MD — Long Island Brain & Spine Imagine you're sitting in a waiting room, MRI images in hand, trying to process what the doctor just told you. There's a herniated disc at L4-L5. Or stenosis at three levels. Or degeneration that looks, in the...
Demystifying Brain Myths: What Hollywood Gets Wrong About Neurosurgery
Demystifying Brain Myths: What Hollywood Gets Wrong About Neurosurgery Movies and television have long been fascinated with the human brain. From dramatic emergency surgeries to miraculous awakenings and sudden personality changes, neurosurgery is often portrayed as...
The Role of Nutrition in Brain Health: Foods That Fuel Your Mind
The Role of Nutrition in Brain Health: Foods That Fuel Your Mind As a neurosurgeon, I often see patients when neurological problems have already reached a critical point—brain tumors, spinal cord compression, stroke, or degenerative disease. While surgery and medical...


