Georgios A. Zenonos
Experienced in Chondrosarcoma

Dr. Georgios A. Zenonos

Neurosurgery
UPMC
UPMC Neurological Institute - Presbyterian
200 Lothrop Street, A402 UPMC Presbyterian, 
Pittsburgh, PA 
On Staff At
Accepting New Patients
Offers Telehealth

Experienced in Chondrosarcoma
UPMC
UPMC Neurological Institute - Presbyterian
200 Lothrop Street, A402 UPMC Presbyterian, 
Pittsburgh, PA 
OverviewInsuranceLocationsClinical ResearchSimilar Doctors

Overview

Dr. Zenonos became the associate director of the UPMC Center for Cranial Base Surgery in July 2019 after receiving extensive formal subspecialization in his field. He is one of a handful of board-certified neurosurgeons to have completed two fellowships in skull base surgery. At the University of Pittsburgh, one fellowship focused on endoscopic and minimally invasive approaches, and the other centered on complex open skull base approaches. His fellowship at the University of Miami was on complex cranial and cerebrovascular neurosurgery.

Dr. Zenonos is rated as an Experienced provider by MediFind in the treatment of Chondrosarcoma. His top areas of expertise are Chordoma, Meningioma, Olfactory Neuroblastoma, Gamma Knife Radiosurgery, and Cerebral Artery Bypass Surgery.

His clinical research consists of co-authoring 130 peer reviewed articles and participating in 2 clinical trials. MediFind looks at clinical research from the past 15 years. In particular, he has co-authored 1 article in the study of Chondrosarcoma.

Specialties
Neurosurgery
Licenses
Neurological Surgery in PA
Board Certifications
American Board Of Surgery
Fellowships
University of Pittsburgh School of Medicine
Hospital Affiliations
Upmc Horizon
Upmc Presbyterian Shadyside
Upmc Altoona
Languages Spoken
English
Greek
Gender
Male

Insurance

Accepted insurance can change. Please verify directly with the provider.

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Accepted insurance plans:

Aetna
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Locations

UPMC Neurological Institute - Presbyterian
200 Lothrop Street, A402 UPMC Presbyterian, Pittsburgh, PA 15213
Call: 412-755-2508

Clinical Research

Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.


2 Clinical Trials

A Phase 3 Multicenter Study of Gleolan (Aminolevulinic Acid Hydrochloride) to Enhance Visualization of Tumor in Patients With Newly Diagnosed or Recurrent Meningiomas
A Phase 3 Multicenter Study of Gleolan (Aminolevulinic Acid Hydrochloride) to Enhance Visualization of Tumor in Patients With Newly Diagnosed or Recurrent Meningiomas
Enrollment Status: Completed
Publish Date: June 18, 2024
Intervention Type: Drug
Study Drug: Gleolan
Study Phase: Phase 3
ENRICH: A Multi-center, Randomized, Clinical Trial Comparing Standard Medical Management to Early Surgical Hematoma Evacuation Using Minimally Invasive Parafascicular Surgery (MIPS) in the Treatment of Intracerebral Hemorrhage (ICH).
ENRICH: A Multi-center, Randomized, Clinical Trial Comparing Standard Medical Management to Early Surgical Hematoma Evacuation Using Minimally Invasive Parafascicular Surgery (MIPS) in the Treatment of Intracerebral Hemorrhage (ICH).
Enrollment Status: Completed
Publish Date: May 10, 2023
Intervention Type: Procedure
Study Phase: Not Applicable
View 1 Less Clinical Trial

130 Total Publications

Proton Beam vs Intensity-Modulated Radiotherapy in Olfactory Neuroblastoma.
Proton Beam vs Intensity-Modulated Radiotherapy in Olfactory Neuroblastoma.
Journal: JAMA otolaryngology-- head & neck surgery
Published: October 30, 2025
View All 130 Publications
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Paul A. Gardner
Distinguished in Chondrosarcoma
Dr. Paul A. Gardner
Neurosurgery
Distinguished in Chondrosarcoma
Dr. Paul A. Gardner
Neurosurgery

UPMC Neurological Institute - Presbyterian

200 Lothrop Street, A402 UPMC Presbyterian, 
Pittsburgh, PA 
 (0.1 miles away)
412-663-6733
Languages Spoken:
English
See accepted insurances
Accepting New Patients
Offers Telehealth

Dr. Gardner is the Peter J. Jannetta Endowed Chair of neurological surgery at the University of Pittsburgh School of Medicine and director of the Center for Skull Base Surgery. He specializes in endoscopic endonasal skull base surgery, pituitary tumors, Neuroendoport brain surgery, and vascular neurosurgery. Dr. Gardner is rated as an Elite provider by MediFind in the treatment of Chondrosarcoma. His top areas of expertise are Chordoma, Pituitary Tumor, Meningioma, Nerve Decompression, and Endoscopic Transnasal Transsphenoidal Surgery.

L D. Lunsford
Advanced in Chondrosarcoma
Dr. L D. Lunsford
Neurosurgery
Advanced in Chondrosarcoma
Dr. L D. Lunsford
Neurosurgery

UPMC Neurological Institute - Presbyterian

200 Lothrop Street, Suite F158, 
Pittsburgh, PA 
 (0.1 miles away)
412-647-0953
Languages Spoken:
English
See accepted insurances
Accepting New Patients
Offers Telehealth

Dr. Lunsford is the Lars Leksell Professor and Distinguished Professor of neurological surgery at the University of Pittsburgh School of Medicine. He is also the director of the Center for Image-Guided Neurosurgery and the Residency Training Program at UPMC. Dr. Lunsford is rated as an Elite provider by MediFind in the treatment of Chondrosarcoma. His top areas of expertise are Meningioma, Acoustic Neuroma, Schwannoma, Gamma Knife Radiosurgery, and Rhizotomy.

Ajay Niranjan
Experienced in Chondrosarcoma
Dr. Ajay Niranjan
Neurosurgery
Experienced in Chondrosarcoma
Dr. Ajay Niranjan
Neurosurgery

UPMC Neurological Institute - Presbyterian

200 Lothrop Street, Suite F158, 
Pittsburgh, PA 
 (0.1 miles away)
412-647-0953
Languages Spoken:
English, Hindi
See accepted insurances
Accepting New Patients
Offers Telehealth

Ajay Niranjan, MD, specializes in neurosurgery. He practices at the University of Pittsburgh Physicians, Department of Neurological Surgery and is affiliated with UPMC Presbyterian.  Dr. Niranjan is associate professor of neurological surgery at the University of Pittsburgh School of Medicine. He received his medical degree from King George’s Medical College in Lucknow, India, where he also completed his neurosurgical residency. Dr. Niranjan then completed a fellowship in image-guided neurosurgery at the University of Pittsburgh. A leading expert on stereotactic radiosurgery, Dr. Niranjan has helped develop guidelines for stereotactic radiosurgery for trigeminal neuralgia, pituitary adenomas, arteriovenous malformations, acoustic neuromas, and brain metastases. Dr. Niranjan has co-authored more than 120 articles in journals such as Neurosurgery, Journal of Neurosurgery, and Journal of Neuro-oncology; contributed more than 55 book chapters; and edited two books on stereotactic radiosurgery. Dr. Niranjan is rated as an Elite provider by MediFind in the treatment of Chondrosarcoma. His top areas of expertise are Schwannoma, Brain Tumor, Metastatic Brain Tumor, Gamma Knife Radiosurgery, and Rhizotomy.

VIEW MORE CHONDROSARCOMA DOCTORS

Areas of Expertise

MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.

Learn more about MediFind’s expert tiers

Find Dr. Zenonos's expertise for a condition
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  • Elite
  • Chordoma
    Dr. Zenonos is
    Elite
    . Learn about Chordoma.
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  • Distinguished
  • Cerebrospinal Fluid Leak
    Dr. Zenonos is
    Distinguished
    . Learn about Cerebrospinal Fluid Leak.
    See more Cerebrospinal Fluid Leak experts
  • Meningioma
    Dr. Zenonos is
    Distinguished
    . Learn about Meningioma.
    See more Meningioma experts
  • Olfactory Neuroblastoma
    Dr. Zenonos is
    Distinguished
    . Learn about Olfactory Neuroblastoma.
    See more Olfactory Neuroblastoma experts
  • Advanced
  • Bone Tumor
    Dr. Zenonos is
    Advanced
    . Learn about Bone Tumor.
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  • Brain Abscess
    Dr. Zenonos is
    Advanced
    . Learn about Brain Abscess.
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  • Brain Aneurysm
    Dr. Zenonos is
    Advanced
    . Learn about Brain Aneurysm.
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  • Brain Tumor
    Dr. Zenonos is
    Advanced
    . Learn about Brain Tumor.
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  • Cerebral Artery Bypass Surgery
    Dr. Zenonos is
    Advanced
    . Learn about Cerebral Artery Bypass Surgery.
    See more Cerebral Artery Bypass Surgery experts
  • Chiari Malformation
    Dr. Zenonos is
    Advanced
    . Learn about Chiari Malformation.
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View All 17 Advanced Conditions
  • Experienced
  • Acoustic Neuroma
    Dr. Zenonos is
    Experienced
    . Learn about Acoustic Neuroma.
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  • Acromegaloid Facial Appearance Syndrome
    Dr. Zenonos is
    Experienced
    . Learn about Acromegaloid Facial Appearance Syndrome.
    See more Acromegaloid Facial Appearance Syndrome experts
  • Acromegaly
    Dr. Zenonos is
    Experienced
    . Learn about Acromegaly.
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  • Apoplexy
    Dr. Zenonos is
    Experienced
    . Learn about Apoplexy.
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  • Arachnoid Cysts
    Dr. Zenonos is
    Experienced
    . Learn about Arachnoid Cysts.
    See more Arachnoid Cysts experts
  • Astrocytoma
    Dr. Zenonos is
    Experienced
    . Learn about Astrocytoma.
    See more Astrocytoma experts
View All 63 Experienced Conditions
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