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William McCormick, MD

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United States
West Islip, NY
William McCormick, MD

Board-certified neurosurgeon on Long Island with over 20 years of experience. Specializing in back and neck pain. Minimally-invasive and complex spinal surgery.

Offices in West Islip, NY Board-certified neurosurgeon specializing in back & neck pain. Minimally-invasive and complex spine surgery.

03/02/2026

The posterior longitudinal ligament runs along the back of the vertebral bodies inside the spinal canal. In OPLL, this ligament gradually hardens into bone. As it thickens, it can narrow the spinal canal and compress the spinal cord.

Because OPLL can progress slowly, symptoms are sometimes subtle at first. But once the spinal cord is compressed, early evaluation is critical.

Serving Long Island with expert spine care
Call: 631-456-9374
Learn more or request a consultation: www.williammccormickmd.com
Compassionate care. Trusted results.

02/27/2026

Your spine is more than just support — it’s the central highway of your nervous system.

As a neurosurgeon, Dr. William McCormick is dedicated to diagnosing and treating complex spinal conditions, helping patients return to movement, strength, and quality of life. From herniated discs and spinal stenosis to advanced minimally invasive procedures, precision and patient-centered care are always the priority.

If you’re experiencing persistent back or neck pain, numbness, weakness, or changes in mobility, don’t ignore the signs. Early evaluation can make all the difference.

Ready for a consultation? We are here to help.

📍Serving Long Island with expert spine care
📞 Call: 631-456-9374
Learn more or request a consultation: www.williammccormickmd.com
Compassionate care. Trusted results.

02/25/2026

Neck pain after trauma should never be ignored. Protect your spine. When in doubt, get evaluated.

Symptoms may include:
• Neck pain or stiffness
• Limited range of motion
• Numbness or tingling in the arms
• Weakness
• Balance difficulty

In some cases, patients with underlying arthritis or spinal narrowing are at even greater risk of spinal cord injury after trauma.

Ready for a consultation? We are here to help.
Serving Long Island with expert spine care
Call: 631-456-9374
Learn more or request a consultation: www.williammccormickmd.com
Compassionate care. Trusted results.

02/23/2026

As we age, the spinal discs lose hydration and height. Bone spurs may form, and in some cases, the spinal cord or nerve roots become compressed.

Common Symptoms:
• Chronic neck stiffness or pain
• Radiating arm pain
• Numbness or weakness in the hands
• Difficulty with coordination or walking (in more advanced cases)

Early evaluation is key. Persistent or worsening neurological symptoms should never be ignored.

If you’re experiencing ongoing neck or arm symptoms, consult a spine specialist for proper assessment.

Your spine health matters.

Serving Long Island with expert spine care
Call: 631-456-9374
Learn more or request a consultation: www.williammccormickmd.com
Compassionate care. Trusted results.

02/20/2026

Dr. William McCormick is a board-certified neurosurgeon and Medical Director at Long Island Brain & Spine, bringing more than two decades of experience in cranial and complex spine surgery. He is highly regarded for his expertise in minimally invasive spine techniques and his commitment to evidence-based, patient-centered care.

He earned his medical degree from the University of Rochester School of Medicine and completed his neurosurgical training at the Cleveland Clinic, where he performed extensive research in spinal surgery and biomechanics.

Dr. McCormick emphasizes thorough evaluation, patient education, and conservative treatment whenever appropriate, ensuring each patient receives a personalized approach to care. His leadership and clinical excellence continue to advance neurosurgical care across Long Island.

At Long Island Brain & Spine, our world-class board-certified neurosurgeons and interventional pain management physicians utilize the latest techniques to help you get back to enjoying your life and activities.

Contact our office to schedule a consultation or request an appointment on our website.

Long Island Brain & Spine
“We’ve Got Your Back”
☎️ | 631-422-5371 or 1-888-737-5427
🌐 | www.longislandbrainandspine.com

02/19/2026

Don’t let back or neck pain control your life—schedule your consultation with Dr. McCormick and Amy Clarke, PA-C, our expert neurosurgery team, and take the first step toward lasting relief and personalized care.

📍Serving Long Island with expert spine care
📞 Call: 631-456-9374
Learn more or request a consultation: www.williammccormickmd.com

Compassionate care. Trusted results.

02/13/2026

Sitting for long periods—especially with poor posture—can increase stress on the lower spine. Taking regular breaks, adjusting your workstation, and changing positions throughout the day can help reduce strain and support spine health.

Tip: Stand up, stretch, or take a short walk every hour to give your back a break!

If back pain persists, don’t wait—schedule an evaluation to get personalized guidance for your spine.

Ready for a consultation? We are here to help.

Serving Long Island with expert spine care
Call: 631-456-9374
Learn more or request a consultation: www.williammccormickmd.com
Compassionate care. Trusted results.

02/11/2026

Early awareness matters. Recognizing symptoms and addressing them early can help prevent progression and support long-term spine function.

Ready for a consultation? We are here to help.

Serving Long Island with expert spine care
Call: 631-456-9374

Learn more or request a consultation: www.williammccormickmd.com
Compassionate care. Trusted results.

02/09/2026

Persistent pain, weakness, numbness, or changes in bowel or bladder function should always be evaluated by a medical professional.

Ready for a consultation? We are here to help.

Serving Long Island with expert spine care
📞 Call: 631-456-9374

Learn more or request a consultation: www.williammccormickmd.com
Compassionate care. Trusted results.

02/06/2026

Dr. William McCormick and Amy Clarke, PA-C specialize in advanced spine care, combining surgical expertise with a compassionate, team-based approach.

From neck and back pain to complex spinal conditions, they focus on personalized treatment plans designed to restore mobility, relieve pain, and improve quality of life.

Because your spine deserves expert care you can trust.

Ready for a consultation? We are here to help.
📍Serving Long Island with expert spine care
📞 Call: 631-456-9374
Learn more or request a consultation: www.williammccormickmd.com
Compassionate care. Trusted results.

02/04/2026

Identifying the cause early allows for timely treatment and may prevent lasting weakness or numbness.

Ready for a consultation? We are here to help.

Serving Long Island with expert spine care
Call: 631-456-9374
Learn more or request a consultation: www.williammccormickmd.com
Compassionate care. Trusted results.

02/02/2026

Whether it’s six more weeks of winter or the signals our nervous system sends every day. Here’s to paying attention, breaking the wrong cycles, and protecting the most important forecast of all: your brain and spine health.

Ready for a consultation? We are here to help.

Serving Long Island with expert spine care
Call: 631-456-9374
Learn more or request a consultation: www.williammccormickmd.com
Compassionate care. Trusted results.

Address

380 Montauk Highway
West Islip, NY
11795

Opening Hours

Monday	9am - 5pm
Tuesday	9am - 5pm
Wednesday	9am - 5pm
Thursday	9am - 5pm
Friday	9am - 3pm

Website

https://williammccormickmd.com/

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