Brain Tumor Specialist & Neuro-Oncologist · Roanoke, Virginia

Dr.
Nasser Mohammed

Board-Certified Neuro-Oncologist & Brain Tumor Specialist

Carilion Clinic · Roanoke, VA

Delivering world-class brain tumor care to the Roanoke Valley and surrounding communities — with fellowship training from MD Anderson Cancer Center and a commitment to bringing clinical trials to our region.

Dr. Nasser Mohammed, Neuro-Oncologist
Dr. Nasser Mohammed
MD · Neuro-Oncologist
MD Anderson Fellowship Trained
40+
Publications
Peer-reviewed research
2
Board Certification
Neurology & Neuro-Oncology
MDA
Fellowship
MD Anderson Cancer Center
NCI
Clinical Trials
Bringing trials to Roanoke

Brain Tumor & Brain Cancer
Care in Roanoke, VA

I am a board-certified neuro-oncologist and brain tumor specialist at Carilion Clinic in Roanoke, Virginia — one of the only fellowship-trained brain cancer doctors serving Southwest Virginia and the surrounding Appalachian region.

My training at MD Anderson Cancer Center provided me with deep expertise in managing glioblastoma (GBM), grade 4 astrocytoma, malignant brain tumors, brain metastases, CNS lymphoma, low-grade gliomas, and other complex brain cancers — using the most current protocols and RANO imaging criteria.

My dual training in both neurosurgery and neurology allows me to offer a uniquely comprehensive perspective — understanding the full neurological and oncological picture of each patient's brain tumor diagnosis.

Fellowship — Neuro-Oncology
MD Anderson Cancer Center, Houston, TX
Board Certification
Neurology & Neuro-Oncology
40+ Peer-Reviewed Publications
Active academic and clinical research profile
Carilion Clinic
Neuro-Oncology Program, Roanoke, Virginia
NCI Clinical Trials
CTEP-registered investigator, NCORP-affiliated

Brain Tumors & Cancers
I Treat

01
Glioblastoma (GBM) & Grade 4 Brain Cancer
Expert management of glioblastoma multiforme (GBM), grade 4 astrocytoma, and other malignant brain cancers. Treatment includes Stupp protocol chemoradiation, temozolomide, tumor treating fields (Optune), and clinical trial access.
02
Brain Metastases
Multidisciplinary care coordination for patients with cancer that has spread to the brain, including systemic treatment optimization and radiosurgery planning.
03
CNS Lymphoma
Expert management of primary central nervous system lymphoma with high-dose methotrexate-based regimens and consolidation strategies.
04
Low-Grade Gliomas & Astrocytoma
Surveillance and treatment planning for IDH-mutant astrocytoma, grade 2/3 glioma, and oligodendroglioma (1p/19q co-deletion). Molecular profiling guides every treatment decision.
05
Meningiomas & Skull Base
Medical management and post-surgical surveillance for meningiomas, including high-grade and recurrent cases requiring systemic therapy.
06
Clinical Trial Enrollment
Access to NCI-sponsored and industry investigational protocols that would otherwise require travel to academic cancer centers.

A measured, evidence-based
approach to complex care

Precision Diagnosis
Every tumor is evaluated with integrated molecular profiling — IDH mutation, MGMT methylation, 1p/19q codeletion — to guide treatment decisions grounded in current WHO classification and RANO criteria.
Multidisciplinary Coordination
I work closely with neurosurgeons, radiation oncologists, neuroradiologists, and neuropathologists to ensure each patient receives a truly coordinated treatment plan — not siloed care.
Local Access to Innovation
Through CTEP registration and NCORP affiliation, I am actively bringing NCI-sponsored clinical trials to Roanoke so patients in southwest Virginia don't have to travel hundreds of miles for cutting-edge treatment.
Patient & Family Partnership
A brain tumor diagnosis is life-altering for the entire family. I take time to explain diagnoses clearly, discuss realistic goals of care, and involve loved ones in every step of the treatment journey.

Academic scholarship
in neuro-oncology

With more than 40 peer-reviewed publications, my research spans neuro-oncology, stereotactic radiosurgery, meningioma management, pituitary tumors, and vascular neurosurgery. I remain committed to advancing the science that directly informs patient care.

  • Oncology
    Mohammed N, et al. Outcomes in patients with high-grade meningioma (HGM): a multi-institutional study.
    Neuro-Oncology · 2024 · PMID via DOI: 10.1093/neuonc/noae165.0140
  • Oncology
    Mohammed N, Hung YC, Xu Z, et al. Neurofibromatosis type 2-associated meningiomas: an international multicenter study of outcomes after Gamma Knife stereotactic radiosurgery.
    J Neurosurg · 2021 · PMID: 34144518
  • Oncology
    Shepard MJ, Xu Z, Donahue J, … Mohammed N, … Sheehan JP. Stereotactic radiosurgery with and without checkpoint inhibition for patients with metastatic non-small cell lung cancer to the brain: a matched cohort study.
    J Neurosurg · 2019 · PMID: 31349225
  • Oncology
    Narayan V, Savardekar A, Mohammed N, et al. Primary Focal Intracranial Leptomeningeal Glioma: Case Report and Review of the Literature.
    World Neurosurg · 2018 · PMID: 29689399
  • Oncology
    Savardekar AR, Patra DP, … Mohammed N, et al. Differential Tumor Progression Patterns in Skull Base Versus Non-Skull Base Meningiomas: A Critical Analysis from a Long-Term Follow-Up Study.
    World Neurosurg · 2018 · PMID: 29258946
  • Radiosurgery
    Mohammed N, Hung YC, Eluvathingal Muttikkal TJ, et al. Changes in the muscles of mastication before and after primary stereotactic radiosurgery in patients with idiopathic trigeminal neuralgia.
    J Neurosurg · 2019 · PMID: 31703194
  • Radiosurgery
    Mohammed N, Hung YC, Chen CJ, et al. A Proposed Grading Scale for Predicting Outcomes After Stereotactic Radiosurgery for Dural Arteriovenous Fistulas.
    Neurosurgery · 2020 · PMID: 31584074
  • Radiosurgery
    Mohammed N, Hung YC, Xu Z, et al. A Propensity Score-Matched Cohort Analysis of Outcomes After Stereotactic Radiosurgery in Older versus Younger Patients with Dural Arteriovenous Fistula: An International Multicenter Study.
    World Neurosurg · 2019 · PMID: 30790731
  • Radiosurgery
    Faramand A, Kano H, Niranjan A, … Mohammed N, et al. Stereotactic Radiosurgery for Choroid Plexus Tumors: A Report of the International Radiosurgery Research Foundation.
    Neurosurgery · 2020 · PMID: 33372216
  • Radiosurgery
    Hung YC, Lee CC, Yang HC, Mohammed N, et al. Stereotactic radiosurgery for central neurocytomas: an international multicenter retrospective cohort study.
    J Neurosurg · 2020 · PMID: 32244212
  • Radiosurgery
    Langlois AM, … Mohammed N, Sheehan JP, et al. Outcomes after stereotactic radiosurgery for schwannomas of the oculomotor, trochlear, and abducens nerves.
    J Neurosurg · 2021 · PMID: 33482633
  • Radiosurgery
    Mohammed N, Bunevicius A, Muttikkal Thomas E, et al. Gamma Knife radiosurgery associated worsening of superficial siderosis due to a foramen magnum tumor — case report.
    J Radiosurg SBRT · 2020 · PMID: 33282471
  • Radiosurgery
    Mehta GU, Lekovic GP, … Mohammed N, et al. Effect of Anatomic Segment Involvement on Stereotactic Radiosurgery for Facial Nerve Schwannomas: An International Multicenter Cohort Study.
    Neurosurgery · 2020 · PMID: 32687577
  • Meningioma
    Ruiz-Garcia H, Trifiletti DM, Mohammed N, et al. Convexity Meningiomas in Patients with Neurofibromatosis Type 2: Long-Term Outcomes After Gamma Knife Radiosurgery.
    World Neurosurg · 2020 · PMID: 33152493
  • Meningioma
    Mohammed N, Narayan V, Patra D, et al. Management of Meningiomas Involving the Major Venous Sinuses: A Single-Institution Experience.
    World Neurosurg · 2019 · PMID: 30878750
  • Meningioma
    Patra DP, Savardekar AR, … Mohammed N, et al. Meningioma: The Tumor That Taught Us Neurosurgery.
    World Neurosurg · 2018 · PMID: 29902611
  • Meningioma
    Cordeiro D, Xu Z, Nasser M, et al. The role of Crooke's changes in recurrence and remission after gamma knife radiosurgery.
    J Neurooncol · 2019 · PMID: 30607704
  • Meningioma
    Narayan V, Bir SC, Mohammed N, et al. Surgical Management of Giant Intracranial Meningioma: Operative Nuances, Challenges, and Outcome.
    World Neurosurg · 2018 · PMID: 28987827
  • Pituitary
    Mohammed N, Ding D, Hung YC, et al. Primary versus postoperative stereotactic radiosurgery for acromegaly: a multicenter matched cohort study.
    J Neurosurg · 2019 · PMID: 31026829
  • Pituitary
    Hung YC, Lee CC, Yang HC, Mohammed N, et al. The benefit and risk of stereotactic radiosurgery for prolactinomas: an international multicenter cohort study.
    J Neurosurg · 2019 · PMID: 31374549
  • Pituitary
    Shrivastava A, Mohammed N, et al. Outcomes After Gamma Knife Stereotactic Radiosurgery in Pediatric Patients with Cushing Disease or Acromegaly: A Multi-Institutional Study.
    World Neurosurg · 2019 · PMID: 30790739
  • Pituitary
    Narayan V, Mohammed N, et al. Long-Term Outcome of Nonfunctioning and Hormonal Active Pituitary Adenoma After Gamma Knife Radiosurgery.
    World Neurosurg · 2018 · PMID: 29574220
  • Vascular
    Hung YC, Mohammed N, et al. Stereotactic Radiosurgery for Cavernous Sinus Versus Noncavernous Sinus Dural Arteriovenous Fistulas: Outcomes and Outcome Predictors.
    Neurosurgery · 2020 · PMID: 31384943
  • Vascular
    Hung YC, Mohammed N, et al. The impact of preradiosurgery embolization on intracranial arteriovenous malformations: a matched cohort analysis based on de novo lesion volume.
    J Neurosurg · 2019 · PMID: 31470409
  • Vascular
    Raper DMS, Mohammed N, et al. Left temporal craniotomy and direct microcatheterization of the middle meningeal artery for treatment of a complex temporal dural arteriovenous fistula.
    Neurosurg Focus · 2019 · PMID: 30939445
  • Vascular
    Dossani RH, Patra DP, … Mohammed N, et al. Early Versus Delayed Flow Diversion for Ruptured Intracranial Aneurysms: A Meta-Analysis.
    World Neurosurg · 2019 · PMID: 30822578
  • Vascular
    Patra DP, Savardekar AR, … Mohammed N, et al. Repeat Gamma Knife radiosurgery versus microvascular decompression following failure of GKRS in trigeminal neuralgia: a systematic review and meta-analysis.
    J Neurosurg · 2018 · PMID: 30485193

Questions patients ask
after a brain tumor diagnosis

What is a neuro-oncologist and why do I need one after a brain tumor diagnosis? +

A neuro-oncologist is a physician who specializes exclusively in brain tumors and cancers of the nervous system. After a brain tumor diagnosis — whether glioblastoma, astrocytoma, brain metastases, or CNS lymphoma — a neuro-oncologist coordinates all aspects of your cancer treatment, working alongside your neurosurgeon and radiation oncologist to create a personalized, evidence-based treatment plan.

What is glioblastoma (GBM) and what are my treatment options? +

Glioblastoma multiforme (GBM), also called grade 4 astrocytoma, is the most aggressive primary brain cancer. Standard treatment includes surgery followed by concurrent radiation and temozolomide chemotherapy (the Stupp protocol), then maintenance chemotherapy, and in many patients, tumor treating fields (Optune). Molecular markers like MGMT promoter methylation and IDH mutation status are critical in guiding therapy. Clinical trials offer additional options and are available through my practice at Carilion Clinic in Roanoke.

What does grade 4 astrocytoma or malignant brain cancer mean? +

The WHO classifies brain tumors on a grade 1–4 scale based on aggressiveness. Grade 4 astrocytoma includes glioblastoma (GBM) — the highest-grade, fastest-growing primary brain cancer. The 2021 WHO classification also incorporates molecular markers (IDH mutation, TERT promoter, EGFR amplification) to more precisely define each tumor's biology and guide treatment. Early referral to a neuro-oncologist is critical.

Cancer has spread to my brain — what is a brain metastasis? +

Brain metastases occur when cancer from another part of the body — most commonly lung, breast, melanoma, kidney, or colon — spreads to the brain. Treatment depends on the number and size of lesions, the primary cancer type, and your systemic treatment options. Approaches include stereotactic radiosurgery (Gamma Knife), whole-brain radiation, surgery, and targeted or immunotherapy agents that cross the blood-brain barrier.

Are clinical trials for brain tumors available in Roanoke, Virginia? +

Yes. I am actively pursuing CTEP registration and NCORP affiliation to bring NCI-sponsored brain tumor clinical trials directly to Carilion Clinic in Roanoke. This means Southwest Virginia patients may be able to access investigational therapies — including novel immunotherapy and targeted agents — without having to travel to distant academic cancer centers.

Do I need a referral to see Dr. Mohammed? +

Referrals from primary care physicians, neurologists, neurosurgeons, and oncologists are welcome. If you or a family member has received a brain tumor diagnosis and would like a neuro-oncology consultation at Carilion Clinic in Roanoke, please call (540) 581-9914.

Brain Tumor Doctor Serving
Roanoke & Southwest Virginia

Carilion Clinic – Riverside 3 3 Riverside Circle, Roanoke, VA 24016
Neuro-Oncology Program
Appointments (540) 581-9914
Carilion Clinic Neuro-Oncology
Coverage Area Roanoke Valley · Lynchburg · New River Valley
Southwest & Central Virginia · WV border region
Academic Affiliation Virginia Tech Carilion School of Medicine
Carilion Clinic – Riverside 3 · 3 Riverside Circle, Roanoke, VA 24016

Schedule a
consultation

If you or a loved one has been diagnosed with a brain tumor or complex neurological cancer, I am here to help. Referrals are welcome from all providers in the region.

For urgent neurological concerns, please call 911 or go to the nearest emergency room.