Dr. Gary Dennis, MD

New Patients

Dr. Gary Dennis, MD


Neurosurgery | Male

Frisco Spine 4401 Coit Rd Ste 405, Frisco, TX 75035 Get Directions
(972) 377-9200

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Care Philosophy

I provide comprehensive and compassionate healthcare which is focused on all ages but especially patients in critical times of change.Read more

Personal Bio

Dr Dennis is a board certified neurosurgeon, trained in the most advanced spinal and cranial techniques, Dr Dennis has...Read more

Dr. Dennis' Experience

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Procedures Performed

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Background Check

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Awards & Recognition

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Languages Spoken

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Memberships & Professional Affiliations

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Visiting Dr. Dennis

Dr. Dennis accepts 30 insurance carriers

Affiliated Hospitals

Hospital Quality
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Dr. Dennis' Reviews

Likelihood of recommending Dr. Dennis to family and friends
based on 31 total surveys (7 with reviews)
Dr. Dennis' Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers Questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
  • Average wait time
    16 to 30 minutes
Patient Reviews (7)
in Frisco, TX |
Dr Dennis is compassionate and kind and on top of all that, he's just a darn good doctor. I had a lot of scar tissue from previous back surgeries and he cleaned it all up. I'm only a week post surgery and I can already feel that I have no residual pain.
in Frisco, TX |
Pre-Surgery preparation, surgery and post surgery were excellent. Only negative is time management as waiting times in office to see him are sometimes excessive.
Mckinney, TX |
Dr. Dennis performed emergency surgery to control brain swelling after my wife suffered a major stroke . He acted very quickly and decisively, working well into the early hours of the morning and then returned to personally check on her first thing next morning and at least twice each day ( that I saw) next few days. I truly believe he saved her life, and put her in a position to have the best chances at recovery from the stroke. Thank you Dr Dennis!
in Melissa, Tx |
Dr. Gary Dennis saved my life. I had two hematomas pushing on my spinal cord quickly making me a quadropelegic. Dr. Dennis operated from 1 AM to 6 AM to delicately perform a laminectomy. His bedside manner was wonderful. He checked on me more than any surgeon has ever done. When I go back for followups he spends as much time as needed, and never rushes me out the door. I highly recommend this man to everyone.
in Allen, TX |
Dr. Dennis is awesome!! He did by back surgery and I'm pain free.
Frisco, TX |
I highly recommend and definitely return to Dr Dennis
in Howe tx |
Had surgery to repair his 2 botched surgeries Dec 10 2015. Surgeon was able to fix all levels C4-7 all through the front of the neck with even a smaller incision than Dr Dennis done to start with . So my Back was split open for no reason just to get paid for a 2nd surgery! All muscles in the back are still messed up besides his failure to tell me about putting a screw out in open space seeing it on a CT and never telling me till I got a 2nd opinion!!
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Dr. Dennis says...

Dr Dennis is a board certified neurosurgeon, trained in the most advanced spinal and cranial techniques,  Dr Dennis has the same passion and proficiency that has made him a success in his many areas of practice.   He is a Fellow of the American College of Surgeons and a Fellow of the American Association of Neurological Surgeons.  His goal is to assist patients to maintain their highest quality of life and to sustain their physical independence.  He is proficient in the latest techniques, but says, "Don't be fooled, there are no shortcuts to providing individualized, quality patient care."

As an exceptionally, skilled surgeon, Dr Dennis routinely handles minimally invasive removal of spinal and brain tumors.  He specializes in the treatment of spinal compression disorders, herniated disc and degenerative disc disease.  He is also an expert at treating spinal stenosis, carpal tunnel, and ulnar nerve compression.

Dr Dennis experienced success early, and enjoys a national reputation.  He has been appointed to the Advisory Council of three U.S. Secretaries of Health and Human Services.  What differentiates him is that he has been recognized by his peers, as well as, by the public.  He has received many honors and has been highlighted in "MD News," "Top Doctors," "Best Doctors and "Who's Who in Medicine" and was named outstanding alumnus of Boston University 2011.

"Boston University did an exceptional job preparing me for medical school," says Dr Dennis.  He went on the attend Howard University College of Medicine in his hometown of Washington, D.C., where he excelled and graduated with honors.  He then completed a surgical internship at Johns Hopkins Hospital.  He completed his neurosurgery residency at the Baylor College of Medicine, Houston, Texas. 

As both an organizer and a leader, he has enjoyed classes at Harvard University, focusing on physician leadership and the status of our evolving health care.  Over the course of his 26 year academic career, he has authored more than 50 peer-reviewed research articles and has been appointed to many state and national commissions and boards.

Dr. Dennis' Care Philosophy

I provide comprehensive and compassionate healthcare which is focused on all ages but especially patients in critical times of change.

Dr. Dennis says...

Dr. Dennis is also a surgeon who treats chronic pain conditions with surgery after all else fails, such as implanting spinal cord stimulators, pain pumps and performs re-do laminectomies in cases where a patient has a failed back syndrome.   Dr. Dennis in addition performs shunts for hydrocephalus and cysts of the spinal cord.

Dr. Dennis' experience matches your search based on the following criteria:

  •  Based on total number of patients treated over the last 12 months
  •  Specializes in Neurosurgery
  •  Board certified in Neurosurgery
  •  No malpractice claims found
  •  No sanctions found
  •  No board actions found

Awards & Recognition

  • Awards & Honors
    • Healthgrades Honor Roll
    What is a recognized doctor
  • Media & Publications

    Dr. Dennis has no media or publications listed.

Background Check

  • 0
    Malpractice Claims

    No malpractice history found for Texas.

    What is medical malpractice
  • 0

    No sanctions history found for the years that Healthgrades collects data.

    What is a sanction or disciplinary action
  • 0
    Board Actions

    No board actions found for the years that Healthgrades collects data.

    What are board actions

Board Certifications

Why It Matters: Dr. Dennis' Board Certifications

Board certification should be one of your top considerations when choosing a doctor. Board certification is an official recognition given to doctors who have met specific requirements set by national medical specialty boards in the... More

  • Neurosurgery

Conditions Treated

  • Aneurysm
  • Bone Cancer
  • Bone Disorders
  • Brain Cancer
  • Brain Disorders
  • Brain and Nervous System Cancer (incl. Gliomas, Astrocytoma, Schwannoma, Medulloblastoma, Chordoma)
  • Broken Neck
  • Cancer
  • Cerebral Hemorrhage
  • Cerebrospinal Fluid Leak (CSF Leak)
  • Cervical Spine Myelopathy
  • Chiari's Deformity
  • Degenerative Disc Disease
  • Ear Disorders
  • Fracture
  • Herniated Disc
  • Hydrocephalus
  • Idiopathic Intracranial Hypertension
  • Intervertebral Disc Disease
  • Low Back Pain
  • Lumbar Spine Fracture
  • Meningiomas
  • Myelopathy
  • Normal Pressure Hydrocephalus
  • Osteoarthritis of Spine
  • Pathological Spine Fracture
  • Post-Laminectomy Syndrome
  • Radiculopathy (Not Due to Disc Displacement)
  • Secondary Malignancies
  • Spinal Cord Injury
  • Spinal Cord Tumor
  • Spinal Stenosis
  • Spine Disorders
  • Spine Fractures, Traumatic
  • Spondylolisthesis
  • Subarachnoid Hemorrhage
  • Subdural Hemorrhage
  • Thoracic Spine Fracture
  • Thoracic Spine Myelopathy
  • Thrombosis
  • Vascular Disease
  • Vertebral Column Tumors


  • Medical School
    Howard University College Of Medicine

    Graduated in 1976

  • Internship Hospital
    John Hopkins University
  • Residency Hospital
    Baylor College Of Medicine Affiliated Hospitals
  • Fellowship Hospital
    John Hopkins University

Languages Spoken

  • English

Memberships &
Professional Affiliations

Dr. Dennis does not have any memberships or affiliations listed. If you are Dr. Dennis and would like to add memberships or affiliations, please update your free profile.


  • Neurosurgery

Procedures Performed

  • Brain Surgery
  • Carotid Ultrasound
  • Carpal Tunnel Release
  • Cerebrospinal Fluid (CSF) Shunt - Insertion, Repair or Removal
  • Craniectomy, Craniotomy, Surgery of Skull Base, Neuroendoscopy
  • Dural Repair or Other Spinal Cord Repair
  • Herniated Disc Surgery
  • Kyphoplasty
  • Lamina Procedures (incl. Laminectomy, Laminoplasty, Laminotomy)
  • Neuroplasty
  • Pain Pump
  • Pituitary Gland Tumor Excision
  • Spinal Compression Fracture Repair
  • Spinal Fusion
  • Spinal Reconstructive Surgery for Deformities
  • Stereotaxis