Evergreen Spine and Neurosurgery Center

Neurosurgery located in Shenandoah, TX & Conroe, TX


We're open with protocols in place to ensure your safety. We have put in place CDC recommended protocols to ensure the saftey of our patients, doctors, and staff.

  • Temperature Check Is Done Upon Arrival: We use a contactless thermometer to take the temperatures of everyone who enters our office and will ask anyone with fever to reschedule.

  • Personal Protective Equipment: Mask and gloves will be worn by our doctors and associates during exams. Every person entering the office is required to wear a face covering or mask. One will be provided if needed.

  • Limiting Exams Per Hour: We are limiting the number of patients per hour to perform a thorough cleaning after each exam and to adhere to CDC social distancing guidelines.

  • Cleaning Of Equipment And Surfaces: All equipment and surfaces will be cleaned after each exam.


Our mission is to provide excellent care everyday at Evergreen Spine and Neurosurgery Center. We are the local leaders in Neurosurgery, our patients receive the most advanced treatments available for their simple or complex issues.




Evergreen Spine and Neurosurgery Center in Shenandoah, Texas and Conroe, Texas, offers expert surgical treatments for a wide range of spine and brain conditions. Cyril Sebastian, MD, and Derek G. Kroll, DO, have extensive experience in diagnosing and treating conditions like brain tumors, brain injuries, spinal stenosis, herniated discs, spine tumors, and carpal tunnel syndrome.

The physicians provide extensive exams and diagnostic testing to evaluate each patient’s specific needs before recommending treatment. They’re skilled in brain surgeries, including pituitary tumor removal and brain tumor removal. They also offer various spinal surgeries, including laminectomy, spinal fusion, and microdiscectomy. When appropriate, the physicians use minimally invasive surgical techniques.

Evergreen Spine and Neurosurgery Center is a state-of-the-art practice, using innovative technology and techniques to restore patients’ health and quality of life. The physicians are associated with hospitals in the Houston area, including HCA Conroe, HCA Houston Northwest, Houston Methodist in The Woodlands, and Northwest Surgery Center.

New patients are welcome at Evergreen Spine and Neurosurgery Center and the practice accepts most insurance plans. Consultations are available by calling the office or using the online booking tool.



We accept most major insurances. Please call the office for a full, detailed list of the insurances we accept.

Anthem Blue Cross Blue Shield
Texan Plus
United Health Care

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Words from our patients

  • Google

    "All & all he is the best there is and we will be forever grateful for what he has done for us."

    Barry J.
  • Healthgrades

    "I have always felt comfortable with expressing any concern on questions with Dr. Sebastian. His staff is always so kind and comforting."

    Avera M.
  • Healthgrades

    "Awesome results I will definitely use him for my lower back! Thank you again Dr. Cyril Sebastian!"

    Marion H.