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Department Brain Tumor and Neuro-Oncology Center
Primary Location Cleveland Clinic Main Campus
Type of Doctor Adults Only
Languages English
Surgeon No
Cleveland Clinic Main Campus
Primary Location

Cleveland Clinic Main Campus

Specialties & Treatments

Treatment & Services

  • Adult Neuro-Oncology
  • Brain Tumor Diagnosis
  • Brain Tumor Management
  • Cancer Center
  • Clinical Trials
  • Electromyography
  • Lumbar Puncture (Spinal Tap)
  • Neuro-Oncology
View all 8 Treatment & Services +

Specialty in Diseases & Conditions

  • Acoustic Neuroma
  • Adult Brain Tumors
  • Anaplastic Astrocytomas
  • Anaplastic Oligodendrogliomas
  • Astrocytoma
  • Benign Brain Tumors
  • Benign Tumors of the Spinal Cord
  • Brain Cancer
  • Brain Lymphoma
  • Brain Metastases
  • Cavernous Sinus Tumors
  • Chordomas
  • Clival Chordomas
  • Ependymomas
  • Glioblastoma Multiforme
  • Hemangioblastomas
  • Malignant Gliomas
  • Malignant Tumors of the Spinal Cord
  • Meningioma
  • Metastatic Cancer
  • Neurofibromatosis
  • Oligodendroglioma
  • Pituitary Tumors
  • Primary Central Nervous System (CNS) Lymphomas
  • Sarcomas of the Brain or Head
  • Schwannoma
  • Spinal Cancer
View all 27 Specialties +


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About Glen Stevens, DO, PhD

Glen H.J. Stevens, DO, PhD, is on Staff in Cleveland Clinic’s Brain Tumor and Neuro-Oncology Center (Neuroscience Institute). He is board-certified in adult neurology. Dr. Stevens joined the Cleveland Clinic in 1997.

A graduate of the University of North Texas College of Osteopathic Medicine, Dr. Stevens completed his fellowship training at the London Regional Cancer Center in London, Ontario, Canada. His specialty interests are adult neuro-oncology, electromyography (a specialized diagnostic procedure that analyzes neuromuscular disorders) and neurofibromatosis, an inherited condition characterized by abnormal tissue growth of the nerves and skin.

A frequent speaker at medical seminars dealing with the diagnosis and management of tumors, Dr. Stevens is a member of the Society for Neuro-Oncology, the Southwest Oncology Group and the American Academy of Neurology. In addition to his clinical activities, Dr. Stevens is the Co-Principal Investigator for Cleveland Clinic's NCI-supported New Approaches to Brain Tumor Therapy Consortium.
Education & Professional Highlights

Education & Professional Highlights


Education & Fellowships

Medical Education - Glen Stevens
Gamma Knife ICON Update
Cleveland, OH United States

Medical Education - Glen Stevens
Gamma Knife Perfection Introductory Training Course
Cleveland, OH United States

Fellowship - Cleveland Clinic
Clinical Neurophysiology
Cleveland, OH

Fellowship - Cleveland Clinic
Neuromuscular Fellowship
Cleveland, OH

Residency - Cleveland Clinic
Neurology Residency
Cleveland, OH United States

Residency - Cleveland Clinic
Cleveland, OH

Internship - Cleveland Clinic
Internship in Medicine
Cleveland, OH

Graduate School - University of North Texas
Denton, TX United States

Medical Education - Texas College of Osteopathic Medicine
Fort Worth, TX United States

Medical Education - University of North Texas-Texas College of Osteopathic Medicine

Medical Education - University of North Texas
Denton, TX

Graduate School - University of Guelph
Guelph, Ontario,

Undergraduate - University of Guelph
Guelph, Ontario,

Professional Highlights

  • Co-PI, NCI New Approaches to Brain Tumor Therapy Consortium


  • Neuro-oncology
  • Psychiatry and Neurology - Neurology

Specialty Interests

adult neuro-oncology, EMG, Neurofibromatosis, benign and malignant tumors of the brain and spinal cord, benign brain tumors (meningiomas, schwannomas), Brain Metastases, brain tumors, CNS metastatic disease, Meningiomas, molecular biology of brain tumors clinical and translational trials, neuro-oncology, tumors of the brain and spine

Awards & Honors

  • Best Doctors, 2006-2008


  • American Academy of Neurology
  • Society for Neuro-Oncology
  • European Association of Neuro-Oncology
  • New Approaches to Brain Tumor Therapy
Research & Publications

Research & Publications

See publications for Glen Stevens, DO, PhD.

(Disclaimer: This search is powered by PubMed, a service of the U.S. National Library of Medicine. PubMed is a third-party website with no affiliation with Cleveland Clinic.)

Industry Relationships

Industry Relationships

Cleveland Clinic physicians and scientists may collaborate with the pharmaceutical or medical device industries to help develop medical breakthroughs or provide medical expertise or education. Cleveland Clinic strives to make scientific advances that will benefit patient care and support outside relationships that promise public benefit. In order for the discoveries of Cleveland Clinic physicians' and scientists' laboratories and investigations to benefit the public, these discoveries must be commercialized in partnership with industry. As experts in their fields, Cleveland Clinic physicians and scientists are often sought after by industry to consult, provide expertise and education.

To assure professional and commercial integrity in such matters, Cleveland Clinic maintains a program that reviews these collaborations and, when appropriate, puts measures in place to minimize bias that may result from ties to industry. Cleveland Clinic publicly discloses the names of companies when (i) its physicians/scientists receive $5,000 or more per year (or, in rare cases, equity or stock options) for speaking and consulting, (ii) its physicians/scientists serve as a fiduciary, (iii) its physicians/scientists receive or have the right to receive royalties or (iv) its physicians/ scientists hold any equity interest for the physician's/scientist's role as inventor, discoverer, developer, founder or consultant.* In publicly disclosing this information, Cleveland Clinic tries to provide information as accurately as possible about its physicians' and scientists' connections with industry.

As of 6/27/2024, Dr. Stevens has reported the financial relationships with the companies listed below. In general, patients should feel free to contact their doctor about any of the relationships and how the relationships are overseen by Cleveland Clinic. To learn more about Cleveland Clinic's policies on collaborations with industry and innovation management, go to our Integrity in Innovation page.

Public Health Service-Reportable Financial Conflicts of Interest. Cleveland Clinic scientists and physicians engage in basic, translational and clinical research activities, working to solve health problems, enhance patient care and improve quality of life for patients. Interactions with industry are essential to bringing the researchers' discoveries to the public, but can present the potential for conflicts of interest related to their research activities. Click here to view a listing of instances where Cleveland Clinic has identified a Public Health Service (PHS)-Reportable Financial Conflict of Interest and has put measures in place to ensure that, to the extent possible, the design, conduct and reporting of the research is free from bias.

* Cleveland Clinic physicians and scientists subscribe to the guidance presented in the PhRMA Code on Interactions with Healthcare Professionals and the AdvaMed Code of Ethics on Interactions with Health Care Professionals. As such, gifts of substantial value are generally prohibited.

Patient Satisfaction Reviews

93 Patient Satisfaction Reviews

The Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our nationally-recognized Press Ganey Patient Satisfaction Survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.

Responses are measured on a scale of 1 to 5 with 5 being the best score.

The comments are submitted by patients and reflect their views and opinions. The comments are not endorsed by and do not necessarily reflect the views of Cleveland Clinic.

Overall Star Ratings
4.9 out of 5
Explains 4.8
Courtesy, Respect & Concern 4.9
Patient Rating of Doctor 4.8

22 Patient Comments

Reviewed on Jun 17, 2024

Always a great experience at the main campus! Love my doctors there! Dr Stevens, especially!

Reviewed on Apr 22, 2024

Doctor Stevens always provides me and my family with outstanding patient care! Doctor Stevens has become such an important part of our family!

Reviewed on Apr 1, 2024

Dr. Steven was so nice. I felt very comfortable with him.

Reviewed on Mar 18, 2024

We love Dr.Stevens! He's so personable and it's refreshing how much he recalls from previous visits with him. My last follow-up I saw his PA and when we were walking through the corridor we happened to pass Dr. Stevens and he remembered us! He's one of the best doctors I've ever had! I'm going to cry when he decides to retire!

Reviewed on Mar 18, 2024

Dr Stevens is amazing. He explains test results and answers any questions and most importantly he is compassionate.

Reviewed on Feb 27, 2024

Dr Stevens is always personable and professional!

Reviewed on Feb 26, 2024

Dr Stevens was very friendly and easy to talk to. He answered all my questions and concerns. I loved his quick sense of humor!

Reviewed on Feb 19, 2024

Not a good visit. Doctor questioned past care and diagnosis I have had for years.

Reviewed on Feb 8, 2024

Dr. Stephens is wonderful!He is very caring and explains things well.

Reviewed on Jan 22, 2024

Dr. Smith explained Diagnosis and procedures very well to me, so that I do have confidence in him

Reviewed on Jan 4, 2024

Dr. Stevens did an excellent job communicating about radiographic findings and explaining my condition.

Reviewed on Dec 14, 2023

Dr. Stevens has been my NO for 15yrs. He is very knowledgeable, kind and compassionate. I appreciate him very much.

Reviewed on Dec 8, 2023

Dr. Stevens was wonderful. He explained everything extremely well and answered all of my questions thoroughly.

Reviewed on Dec 5, 2023

Very happy with Dr Stevens and secretary Toni. I had trouble with computer sign on but that's due to my limited knowledge

Reviewed on Nov 27, 2023

Dr. Steven's is always amazing.

Reviewed on Nov 7, 2023

Dr. Stephens is amazing! He pays close attention to me and explains things very well.

Reviewed on Oct 26, 2023

Dr. Steven's is a very caring doctor. He has respect for Brian and truly cares about the best for Brian. We are blessed to have him!

Reviewed on Oct 9, 2023

Excellent help , concern and knowledge given to me by Doctor.

Reviewed on Sep 19, 2023

Dr.Stevens is great! He gives you as much time as you need to ask questions.

Reviewed on Sep 12, 2023

Thank you Dr Stevens for being so empathetic, caring and devoted to your patients.

Reviewed on Jul 31, 2023

Dr. Stevens always goes far above expectations. He has a genuine concern for me as a person as well as his patient. He explains the results of my MRI so that there is no doubt in my mind as to what it shows.

Reviewed on Jul 18, 2023

Dr stevens cares fort his patient. He does well explaining things

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