Top Neurosurgeons in Long Island
When you’re searching for the top neurosurgeons in Long Island, you deserve a specialist who delivers world-class expertise, advanced neurosurgical care, and compassionate support every step of the way. Dr. Symeon Missios, MD, is a board-certified neurosurgeon specializing in advanced spine and brain surgery, offering leading-edge treatment for complex neurological, spinal, and cranial conditions. Patients across Long Island trust Dr. Missios for his precise diagnostic skills, minimally invasive techniques, and commitment to helping individuals overcome pain, restore function, and reclaim their quality of life.
Meet Our Doctor
Symeon Missios, M.D., FAANS
Dr. Missios is a board-certified neurosurgeon at Long Island Brain & Spine, specializing in both cranial and spinal procedures and with subspecialty training in the surgical and radiosurgical management of brain tumors and in minimally invasive endovascular neurosurgery.
Dr. Missios is also a part of the Stroke and Brain Aneurysm Center of Excellence at Good Samaritan Hospital Medical Center, the only Joint Commission Certified Comprehensive Stroke Center in the South Shore of Long Island. He received extensive training in endovascular neurosurgery at Thomas Jefferson University Hospital, one of the largest stroke centers in the country, and his expertise involves the surgical and minimally invasive endovascular treatment of stroke, brain aneurysms and other vascular neurosurgical pathologies.
Our Treatment Process
Comprehensive Evaluation
Personalized Treatment Plan
We design a customized treatment plan that may include nonsurgical therapies, minimally invasive procedures, or advanced surgical options. Our team ensures you understand every aspect of your care before moving forward.
Surgery & Recovery Support
Advanced Brain Tumor Treatment on Long Island
For patients facing a brain tumor diagnosis in Suffolk County, Dr. Missios offers a full spectrum of advanced treatment options. His clinical expertise covers both benign and malignant tumors that originate in the brain, as well as those that have metastasized from other parts of the body.
Dr. Missios has extensive experience using intraoperative neuronavigation techniques — including intraoperative tractography, brain mapping, and electrocorticography — which allow for the safe removal of complex tumors located in critical brain regions. He is also an expert in stereotactic radiosurgery, a precise method of delivering high-dose radiation directly to a tumor while protecting surrounding healthy brain tissue. Common treatment approaches include surgery, stereotactic radiosurgery, radiation therapy, and chemotherapy — each tailored to the specific tumor type, size, location, and the individual patient’s needs.
Stroke & Brain Aneurysm Care on Long Island
A stroke occurs when blood supply to the brain is interrupted or reduced, leading to rapid brain cell damage. Dr. Missios treats both ischemic stroke — caused by a blockage in the blood vessels — and hemorrhagic stroke, caused by bleeding into the brain. He also treats transient ischemic attacks (TIAs), often called “mini-strokes,” which are serious warning signs that a full stroke may follow.
Stroke warning signs include sudden weakness or numbness on one side of the body, difficulty speaking, sudden confusion, severe headache, and vision disturbances. If you or a loved one experiences any of these symptoms, seek emergency care immediately — time lost is brain lost.
Spine Surgery & Pain Management on Long Island
While most spine conditions do not require surgery, Dr. Missios offers both non-surgical and surgical solutions for patients with debilitating neck and back pain. His spine expertise includes microdiscectomy for herniated discs, treatment for spinal stenosis and spondylolisthesis, minimally invasive spine surgery, peripheral nerve surgery, and neuromodulation for intractable back and leg pain. Dr. Missios takes a conservative-first approach, ensuring surgery is only recommended when it is the most appropriate and beneficial path forward.
For patients managing chronic pain, Dr. Missios takes a comprehensive approach — addressing physical, emotional, and lifestyle factors — and works collaboratively with each patient to develop a treatment plan that meaningfully improves quality of life.
When Should You Worry About A Meningioma? Are you curious about when you should worry about meningioma?
Are you curious about when you should worry about meningioma? Meningioma can grow for years without showing symptoms. If you live on Long Island and are worried you might have meningioma, you should visit Symeon Missios, MD, a Long Island neurosurgeon. When it comes to tumors, it is best to find them sooner rather than later.
What is a Meningioma?
Meningioma is a tumor that arises from the lining of the brain. Meningioma is the most common tumor found in the head and is typically small. The cause of meningioma has not been discovered yet. Exposure to radiation as a child is suspected to be an environmental factor that could contribute to the cause. Women are more likely to get meningioma, which speculates that some female hormones might contribute to the cause. Some other risk factors include:
- Radiation treatment
- Inherited nervous system condition
- Obesity
Symeon Missios, MD, a long island neurosurgeon, has experience in dealing with meningioma and offers services for patients dealing with this tumor.
Symptoms of Meningioma
- Problems with one’s vision. One could experience blurry vision or see double
- Loss of hearing or ringing in the ears
- Headaches that become worse in the morning
- Loss of smell
- Loss of memory
- Seizures
- Trouble with talking
- Weakness in arms and legs
If memory loss or seizure symptoms occur suddenly, seek medical care immediately.
Our Service & Conditions We Treat
Warning Signs of a Stroke
A stroke occurs when the blood supply to part of the brain is interrupted, leading to brain cell death. Recognizing the warning signs of a stroke can be lifesaving. The key symptoms to watch for include:
- Sudden numbness or weakness in the face, arm, or leg, especially on one side of the body.
- Needs for clarity, trouble speaking, or understanding speech.
- Sudden trouble seeing in one or both eyes.
- Sudden trouble walking, dizziness, loss of balance, or lack of coordination.
- Sudden severe headache with no known cause.
If you or someone you know is experiencing any of these symptoms, seeking immediate medical attention from a Neurosurgeon Doctor on Long Island is essential. Prompt treatment can significantly reduce the risk of long-term disability or death.
Recognizing Stroke Signs and Symptoms
- Sudden Weakness or Numbness: One side of the body may become weak or numb, affecting the face, arm, or leg. This often occurs on just one side of the body.
- Difficulty Speaking or Understanding Speech: Slurred speech, confusion, or difficulty understanding others may indicate a stroke.
- Vision Problems: Sudden blurred vision or loss of vision in one or both eyes can be a warning sign.
- Severe Headache: A sudden, severe headache, especially when accompanied by other symptoms, may indicate a stroke.
- Dizziness or Loss of Balance: Sudden dizziness, loss of coordination, or difficulty walking may be signs of a stroke.
Managing Head and Spinal Injuries
Experiencing a brain or spinal injury can be frightening, especially when unsure about the right course of action. Dr. Symeon Missios emphasizes the importance of taking all injuries to the spine and head seriously and promptly consulting top neurosurgeons on Long Island. Effective management of these injuries is crucial for regaining physical and mental well-being. Explore the steps below for treating head and spinal injuries.
Understanding Brain Tumors
When discussing matters concerning brain health, few conditions are as intimidating as brain tumors.At Symeon Missions, MD, we believe that by gaining a deeper understanding of brain tumors and the treatment options available, we can begin to dispel some of the associated fear. Here, we will delve into the world of brain tumors and explore Long Island neurosurgeon.
Understanding Spine Health
Your spine is vital to your overall health, and maintaining its well-being is crucial. A healthy spine ensures proper posture, stability, and mobility, while spine problems can result in debilitating pain and loss of function. To alleviate these problems, finding a skilled neurosurgery in Long Island is essential. Dr. Symeon Missios is a renowned expert in this field, known for his dedication to improving the lives of his patients.
What is Somatic Pain?
Pain is a complex and multifaceted sensation that can manifest in various ways. Somatic pain is one type that originates from the skin, muscles, bones, and connective tissues. As a leading expert in pain treatment for Long Island Brain and Spine, New York, Symeon Missios, MD, sheds light on somatic pain, its causes, symptoms, and treatment options.
What Does A Healthy Spine Encompass? 
To maintain a robust and pain-free spine, it’s essential to comprehend what constitutes a healthy spine.
- Pain-Free: Allowing you to go about your daily activities without hindrance.
- Optimal Mobility: It exhibits excellent flexibility and ease of movement, enabling you to bend, twist, and perform various activities with agility.
- Suppleness: The spine maintains a suppleness that supports its natural curvature, granting you a sense of ease in your movements.
- Strength: A strong spine serves as a sturdy foundation for your body, helping to bear life’s daily stresses and strains.
- Unrestricted Functionality: A healthy spine empowers you to engage in your desired activities without limitations or impediments.
Understanding what a healthy spine entails is the initial step in ensuring your spinal well-being. By appreciating these attributes and addressing any issues that compromise them, you can embark on a path toward preserving the vitality and functionality of your spine. However, when a back or spine is afflicted by damage, injury, arthritis, or the natural wear and tear of time, it forfeits these desirable qualities. This is where the expertise of a Long Island Brain and Spine like Dr. Symeon Missios, becomes a crucial beacon of hope and restoration.
Why Choose Dr. Missios?
As one of the top neurosurgeons in Long Island, Dr. Missios provides comprehensive evaluation and treatment for a wide range of brain and spine conditions. His expertise spans minimally invasive spine surgeries, complex cranial procedures, and advanced treatments for herniated discs, degenerative spinal disorders, brain tumors, scoliosis, and more. With training at leading institutions and experience across high-acuity medical centers—including Good Samaritan University Hospital—Dr. Missios delivers the highest level of neurosurgical care available in Long Island.
Patients benefit from:
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Board-certified neurosurgical expertise
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State-of-the-art techniques including minimally invasive spine surgery
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Advanced diagnostic and treatment planning
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Personalized, patient-centered approach
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Exceptional bedside manner and communication
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Outstanding outcomes and trusted reputation throughout Suffolk County
Serving Patients Across Nassau & Suffolk County
Dr. Missios sees patients at multiple locations across Long Island — including West Islip, Bay Shore, and Smithtown — making top-tier neurosurgical care accessible to communities throughout both Nassau and Suffolk County. Patients receive world-class neurological and spine surgery services close to home, supported by state-of-the-art technology and a compassionate, patient-focused team.
Frequently Asked Questions
What conditions does a neurosurgeon on Long Island treat?
A top Long Island neurosurgeon like Dr. Symeon Missios treats a wide range of brain and spine conditions, including herniated discs, spinal stenosis, nerve compression, brain tumors, degenerative spine disorders, scoliosis, and chronic neck or back pain.
How do I know if I need to see a neurosurgeon?
You may benefit from a neurosurgical consultation if you have persistent neck or back pain, numbness, weakness, radiating leg or arm pain, chronic headaches, or if imaging shows a disc, nerve, or brain abnormality. Dr. Missios evaluates your symptoms and imaging to determine the best treatment path.
Are minimally invasive spine surgeries available?
Yes. Dr. Missios specializes in minimally invasive techniques that use small incisions, reduce muscle disruption, shorten recovery time, and minimize post-operative discomfort.