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Christopher P Kellner, MD
Neurosurgery
About Me
I was born in New York and grew up in Boston. Some patients who are sports fans find that to be a non-starter. I moved back to New York for medical school, though, and now consider myself to be a New Yorker through and through. I became interested in neuroscience during college at Harvard, inspired by the beauty and complexity of the nervous system and the experiences of patients with neurologic disease. Then in medical school at Columbia, I gravitated toward neurosurgery because of the rigorous training required to master its operations, my inspiring surgical mentors in the field, and the ability to make a real difference in patients’ lives inside and outside of the operating room.
In the Cerebrovascular Center in the Department of Neurosurgery at Mount Sinai, I have had the privilege of collaborating with an exceptional, internationally-renowned group of clinicians and researchers who are devoted to improving the lives of our patients. Our most important mission is to ensure that each person we see receives compassionate, individualized, and expert care. This has given me the opportunity to offer the best available treatments to my patients including cutting-edge treatment with new devices and techniques or participation in select clinical trials when appropriate.
My clinical practice focuses on patients who are found to have aneurysms, vascular malformations (including AVMs, cavernous malformations, and dural AV fistulas), moyamoya disease, carotid stenosis, chronic subdural hematomas, pseudotumor cerebrii (also called idiopathic intracranial hypertension), and pulsatile tinnitus. Most of the time, these problems do not require surgery and can be followed by repeating imaging studies like MRI, CT, or ultrasound. I always review the data-driven risks and benefits of observation versus surgery with every patient and their loved ones.
As the Director of the Intracerebral Hemorrhage Program at Mount Sinai, I have had the privilege of working with experts who devote their careers to patients with hemorrhagic stroke throughout the continuum of care, from the emergency room when the bleeding first occurs, to the operating room if needed, to the neurorehabilitation unit and beyond. Together, my colleagues and I have developed a novel minimally invasive treatment for removing brain hemorrhages called the SCUBA technique which many centers around the world are now using. We have also initiated an Enhanced Stroke Recovery Program in collaboration with the Department for Rehabilitation and Human Performance to offer Vagus Nerve Stimulation for patients recovering from stroke. Finally, we have developed a post-stroke monitoring program called the Precision Recovery Program, which uses a digital health mobile application and care platform that we developed at Mount Sinai to keep our patients connected to the care team, help them prevent a second stroke, and maximize their recovery.
Most importantly, I care deeply about developing a relationship with every patient based on trust and an agreement that I will do everything possible to help my patients live their lives to the fullest whether they are contemplating surgery for a newly discovered problem or recovering from a sudden, unexpected stroke.
In the News
Christopher Kellner, MD Saves Life of Misdiagnosed Brain Aneurysm Patient (NY Post)
Christopher Kellner, MD Saves the Life of Broadcaster, Journalist, Musician and Author, Clemency Burton-Hill Who had a Devastating Brain Hemorrhage. (BBC)
Christopher Kellner, MD is a Dedicated Mentor to Students of all Levels (Fox News)
Christopher Kellner, MD is a PI of a Multicentered Trial, Evaluating New Technology, Cerebrotech Visor, to Detect and Triage Stroke (CBS News)
Christopher Kellner, MD is Co-Director to Mount Sinai's Remote Coronavirus Monitoring (Fox News)
Language
English, Spanish
Position
ASSOCIATE PROFESSOR | Neurosurgery
Hospital Affiliations
- Mount Sinai Morningside
- Mount Sinai Beth Israel
- Mount Sinai Brooklyn
- Mount Sinai Queens
- The Mount Sinai Hospital
- Mount Sinai West
Research Topics
Regeneration, Rehabilitation, Stem Cells, Stroke
Clinical Focus
- Aneurysm Coiling
- Arteriovenous Malformation of the Brain
- Biopsy
- Brain Aneurysm
- Carotid Artery Stenosis
- Carotid Stenting
- Cavernous Malformations
- Cerebral Vasospasm
- Cerebrospinal Fluid Leak
- Craniotomy
- Dural Arteriovenous Fistula (DAVF)
- Endovascular Embolization
- Facial Arteriovenous Malformations
- Facial Vascular Malformations
- Hemangioblastoma
- Intracerebral Hemorrhage (ICH)
- Mechanical Thrombectomy
- Meningioma
- Microvascular Clipping
- Microvascular Occlusion
- Neuroendoscopy
- Spinal Vascular Malformations
- Stereotactic Radiosurgery
- Stroke
- Subarachnoid Hemorrhage
- Subdural Hematoma
- Vascular Malformations
- Venous Sinus Thrombosis
- Ventriculostomy
Education
MD, Columbia University College of Physicians & Surgeons
Residency, Neurosurgery
Columbia University Neurological Surgery
Certifications
American Board of Neurological Surgery
Awards
2025
Distinguished Young Physician of the Year
Mount Sinai Alumni Association
2024
Cullman Family Award for Provider Communication Excellence
Mount Sinai Health System
Insurance Information
Accepted insurance may vary by the doctor’s office location. Please contact the office directly to obtain the most up-to-date insurance information.
- AETNA - Medicare
- Affinity Medicaid-Medicare-Essential Exchange
- Amidacare Medicaid
- Centivo
- Elderplan
- EmblemHealth - HIP
- EmblemHealth - HIP-Medicaid
- EmblemHealth - HIP-Medicare
- Empire Blue Cross Blue Shield - Commercial/Exchange
- Empire Blue Cross Blue Shield - HealthPlus Medicaid
- Empire Blue Cross Blue Shield - Medicare
- Fidelis Health Care
- HealthFirst Medicaid
- HealthFirst Medicare
- Magnacare-Health Care
- Medicare - NJ
- Medicare - NY
- Metroplus
- NJ Medicaid
- NY Medicaid
- Oscar
- Oxford - Freedom and Liberty
- Partners Health Plan
- Senior Whole Health
- United Health Care - Commercial
- United Health Care - Empire Plan
- United Health Care - Oxford Care
- United Health Care - Top Tier
- VNSNY Choice Medicare
- VNSNY Select Health Medicaid
- VillageCareMax
- WellCare Health Plan
Physicians who provide services at hospitals and facilities in the Mount Sinai Health System might not participate in the same health plans as those Mount Sinai hospitals and facilities (even if the physicians are employed or contracted by those hospitals or facilities).
Information regarding insurance participation and billing by this physician may be found on this page, and can also be obtained by contacting this provider directly. Because physicians insurance participation can change, the insurance information on this page may not always be up-to-date. Please contact this physician directly to obtain the most up-to-date insurance information.
Insurance and health plan networks that the various Mount Sinai Health System hospitals and facilities participate in can be found on the Mount Sinai Health System website.
Publications
Selected Publications
- Middle Meningeal Artery Embolization for Chronic Subdural Hematoma Using N-Butyl Cyanoacrylate With a D5W Push Technique: A Multicentric North American Study of 269 Patients. Ahmed Abdelsalam, Ian A. Ramsay, Evan M. Luther, Joshua D. Burks, Eva M. Wu, Michael A. Silva, John W. Thompson, Miguel Bandes, Hayes B. Fountain, Tiffany Eatz, Sai Sanikommu, Adib A. Abla, Mohamed M. Salem, Jan Karl Burkhardt, Visish M. Srinivasan, Denise Brunozzi, Ali Alaraj, Gursant Atwal, Fawaz Al-Mufti, Christopher P. Kellner, Ansaar T. Rai, Robert M. Starke. Operative Neurosurgery
- Acute Ischemic Stroke and Endovascular Thrombectomy During COVID-19 Pandemic: A Nationwide Analysis. Preethi Reddi, Amol Mehta, Trevor Hardigan, Milad Shafizadeh, Christopher P. Kellner, Neha S. Dangayach, Johanna T. Fifi, J. Mocco, Shahram Majidi. Neurosurgery Practice
- Safety and efficacy of cangrelor in endovascular thrombectomy compared with glycoprotein IIb/IIIa Inhibitors. Alex Devarajan, Shouri Gottiparthi, Michael T. Caton, Aya Ouf, Katty Wu, Daryl Goldman, Nicole Davis, Nadine Musallam, Jack Zhang, Naina Rao, Neha Dangayach, Connor Davy, Michael G. Fara, Shahram Majidi, Thomas Oxley, Christopher Paul Kellner, Tomoyoshi Shigematsu, Reade Andrew De Leacy, J. Mocco, Johanna T. Fifi, Hazem Shoirah. Journal of NeuroInterventional Surgery
Patient Experience Star Ratings and Comments
The Patient Experience Star Rating reflects our patients’ perception of how well their Mount Sinai provider communicated with them during an office visit. The Star Rating is based on patient responses to three questions on a patient experience survey, a standardized questionnaire sent to verified patients and distributed by a third party vendor, Press Ganey. Responses are measured on a scale of 1 to 5, with 5 being the best score.
Care Provider’s Explanation
Care Provider’s Concern
Likelihood to Recommend Care Provider
Industry Relationships
Physicians and scientists on the faculty of the Icahn School of Medicine at Mount Sinai often interact with pharmaceutical, device, biotechnology companies, and other outside entities to improve patient care, develop new therapies and achieve scientific breakthroughs. In order to promote an ethical and transparent environment for conducting research, providing clinical care and teaching, Mount Sinai requires that salaried faculty inform the School of their outside financial relationships.
Below are financial relationships with industry reported by Dr. Kellner during 2024 and/or 2025. Please note that this information may differ from information posted on corporate sites due to timing or classification differences.
Equity (Stock or stock options valued at greater than 5% ownership of a publicly traded company or equity of any value in a privately held company)
- Von Medical
- Borvo
- Synchron
- Aurenar
- Periscope Medical, Inc.
- Radical
- TET Medical
- Borealis, Inc.
- Metis Innovative, LLC
- E8
- Fluid Biomed
- Reach Neuro
- Precision Recovery Inc
- Phantom Neuro
- Proprio
Founder/Co-Founder/Partner
- Borealis, Inc.
- Metis Innovative, LLC
- Precision Recovery Inc
- Periscope Medical, Inc.
Mount Sinai’s faculty policies relating to faculty collaboration with industry are posted on our website. Patients may wish to ask their physician about the activities they perform for companies.