Clemens M. Schirmer
Expertise in
13
conditions

Dr. Clemens M. Schirmer

Neurosurgery
Geisinger Medical Center - Neurosurgery
100 North Academy Avenue, 
Danville, PA 
Accepting New Patients
Offers Telehealth
Referral may be required
Before you request
Expertise in
13
conditions
Geisinger Medical Center - Neurosurgery
100 North Academy Avenue, 
Danville, PA 

Overview

Dr. Schirmer is board certified in neurological surgery and is fellowship trained in interventional neuroradiology and endovascular neurosurgery. He holds subspecialty certificates for neuroendovascular surgery and neurocritical care. His clinical interests include care and management of patients with acute ischemic and hemorrhagic stroke; intracranial aneurysms and arteriovenous malformations; carotid, vertebral and intracranial atherosclerosis and stenosis; and spinal vascular malformations. He specializes in endovascular flow diversion techniques, skull base surgeries and minimally invasive craniotomy techniques. He earned his medical degree at the Medizinische Fakultät at Ludwig-Maximilians-Universität München in Germany. Dr. Schirmer completed his residency and fellowships at Tufts University, New England Medical Center and Harvard Medical School Teaching Hospitals in Boston.|Video: more from Dr. Clemens Schirmer, M.D., PhD.

Dr. Schirmer is highly rated in 13 conditions, according to our data. His clinical expertise encompasses Brain Aneurysm, Stroke, Subarachnoid Hemorrhage, Thrombectomy, and Stent Placement.

He is actively involved in clinical research, co-authoring 229 peer reviewed articles and participating in 9 clinical trials. Dr. Schirmer is currently accepting new patients.

Specialties

Neurosurgery

Licenses

Neurological Surgery in PA

Fellowships

New England Medical Center-Tufts, 2007

Hospital Affiliations

Geisinger Wyoming Valley Medical Center
Geisinger Medical Center
Geisinger-Community Medical Center

Languages Spoken

English

Gender

Male

Insurance

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

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Accepted insurance plans:

Aetna
  • EPO
  • HMO
  • POS
  • PPO
Capital Blue Cross
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • OTHER MEDICARE PART D
  • PPO
Cigna
  • EPO
  • HMO
  • PPO
Geisinger
  • HMO
  • POS
  • PPO
Highmark
  • EPO
  • HMO
  • PPO
Independent Health
  • EPO
  • POS
  • PPO
Managed Medicaid
  • OTHER MANAGED MEDICAID
Medicaid
  • OTHER MEDICAID
  • STATE MEDICAID
Moda Health
  • EPO
  • PPO
PA Health and Wellness
  • HMO
  • MANAGED MEDICAID PLAN
UnitedHealthcare
  • EPO
  • HMO
  • POS
  • PPO
UPMC
  • EPO
  • PPO
Wellcare
  • EPO
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
View 8 Less Insurance Carriers -

Locations

Geisinger Medical Center - Neurosurgery
100 North Academy Avenue, Danville, PA 17822

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.

9 Clinical Trials

Sleep for Stroke Management and Recovery Trial
Sleep for Stroke Management and Recovery Trial
Enrollment Status: Active_not_recruiting
Publish Date: February 02, 2026
Intervention Type: Device
Study Phase: Not Applicable
SEGA - SEdation Versus General Anesthesia for Endovascular Therapy in Acute Ischemic Stroke - a Randomized Comparative Effectiveness Trial.
SEGA - SEdation Versus General Anesthesia for Endovascular Therapy in Acute Ischemic Stroke - a Randomized Comparative Effectiveness Trial.
Enrollment Status: Completed
Publish Date: November 26, 2025
Intervention Type: Drug, Procedure
Study Drugs: Sedation, General Anesthesia
Study Phase: Phase 4
REal-World Analyses of Stroke - Thrombus Occlusion REtrieval
REal-World Analyses of Stroke - Thrombus Occlusion REtrieval
Enrollment Status: Completed
Publish Date: June 18, 2025
Intervention Type: Device
INVEST-REGISTRY: Minimally Invasive Endoscopic Surgical Treatment With Apollo/Artemis in Patients With Brain Hemorrhage: A Prospective Multicenter Registry
INVEST-REGISTRY: Minimally Invasive Endoscopic Surgical Treatment With Apollo/Artemis in Patients With Brain Hemorrhage: A Prospective Multicenter Registry
Enrollment Status: Completed
Publish Date: June 04, 2025
Intervention Type: Device
Study Phase: Not Applicable
Embotrap eXtraction & Clot EvaLuation & Lesion Evaluation for NeuroThrombectomy
Embotrap eXtraction & Clot EvaLuation & Lesion Evaluation for NeuroThrombectomy
Enrollment Status: Completed
Publish Date: June 03, 2025
Intervention Type: Device
ASSIST Registry to Assess the Procedural Success and Clinical Outcomes Associated With Various Operator Techniques for Mechanical Thrombectomy in Large Vessel Occlusions (LVO).
ASSIST Registry to Assess the Procedural Success and Clinical Outcomes Associated With Various Operator Techniques for Mechanical Thrombectomy in Large Vessel Occlusions (LVO).
Enrollment Status: Completed
Publish Date: May 13, 2025
Intervention Type: Device
INVEST: A Single Arm, Feasibility Study of Minimally Invasive Endoscopic Surgical Treatment With Apollo for Supratentorial Intracerebral Hemorrhage (ICH)
INVEST: A Single Arm, Feasibility Study of Minimally Invasive Endoscopic Surgical Treatment With Apollo for Supratentorial Intracerebral Hemorrhage (ICH)
Enrollment Status: Completed
Publish Date: November 22, 2023
Intervention Type: Device, Other
Study Phase: Not Applicable
Helping Stroke Patients With ThermoSuit Cooling
Helping Stroke Patients With ThermoSuit Cooling
Enrollment Status: Terminated
Publish Date: June 06, 2023
Intervention Type: Drug, Device, Procedure
Study Phase: Not Applicable
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 8 Less Clinical Trials

229 Total Publications

Regional Stabilization Before Transfer in Moderate Traumatic Brain Injury: Comparable Outcomes Within a Rural Hub-and-Spoke Trauma System.
Regional Stabilization Before Transfer in Moderate Traumatic Brain Injury: Comparable Outcomes Within a Rural Hub-and-Spoke Trauma System.
Journal: The American surgeon
Published: August 27, 2026
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 (45.7 miles away)
570-808-3290
Languages Spoken:
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Christoph Griessenauer is a Neurosurgery provider practicing medicine in Wilkes Barre, Pennsylvania. Dr. Griessenauer is highly rated in 19 conditions, according to our data. His clinical expertise encompasses Brain Aneurysm, Subarachnoid Hemorrhage, Stroke, Thrombectomy, and Stent Placement.

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Before you request

Geisinger Medical Center - Neurosurgery

100 North Academy Avenue, 
Danville, PA 
 (0.1 miles away)
800-275-6401
Languages Spoken:
English, Spanish
See accepted insurances
Accepting New Patients

Dr. Slotkin is board certified in neurosurgery by the American Board of Neurological Surgery. His clinical interests include care for back and neck pain, as well as sports-related spine injuries, and he has particular interests in consumerism and the digital transformation of healthcare. His research interests include post spinal cord injury regeneration. Dr. Slotkin has expertise in spine outcomes, caring for degenerative and congenital spine conditions, spinal tumors and spine/spinal cord injury. He earned his medical degree from the University of Maryland, and completed his residency at Harvard University, Brigham and Women's Hospital. He completed his fellowship in spine surgery at New England Baptist Hospital. Dr. Slotkin is director of Spinal Surgery for Geisinger and also serves as associate chief medical informatics officer. Dr. Slotkin is highly rated in 5 conditions, according to our data. His clinical expertise encompasses Spondylolisthesis, Delirium, Invertebral Disc Disease, Spinal Fusion, and Laminectomy. Dr. Slotkin is currently accepting new patients.

Expertise in
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Expertise in
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conditions
Referral may be required

The Milton S. Hershey Medical Center

500 University Dr, 
Hershey, PA 
 (48.8 miles away)
800-243-1455
Languages Spoken:
English
See accepted insurances
Offers Telehealth

Brad Zacharia is a Neurosurgery provider practicing medicine in Hershey, Pennsylvania. Dr. Zacharia is highly rated in 44 conditions, according to our data. His clinical expertise encompasses Astrocytoma, Brain Tumor, Glioblastoma, Balloon Sinuplasty, and Awake Craniotomy.

Frequently Asked Questions about Dr. Clemens M. Schirmer

How do I make an appointment with Dr. Clemens M. Schirmer?

You can book an appointment with Dr. Clemens M. Schirmer by calling their office at 800-275-6401. MediFind provides direct contact information so you can schedule visits, second opinions, or consultations without navigating third-party calendars.

Is Dr. Clemens M. Schirmer a top-rated expert for Brain Aneurysm?

MediFind is an objective health platform that identifies experts based on real-world data. Dr. Clemens M. Schirmer is classified as an Elite expert for Brain Aneurysm, meaning they are among the top experts in the country for this condition. This ranking is based on their volume of patients, published research, and peer connections.

What conditions does Dr. Clemens M. Schirmer specialize in?

While Dr. Clemens M. Schirmer is a Neurosurgery, they have specific expertise in Brain Aneurysm, Stroke, and Thrombectomy. MediFind analyzes a doctor's articles and referral patterns to identify their specific areas of focus within Neurosurgery.

Does Dr. Clemens M. Schirmer participate in research or clinical trials?

Yes. Dr. Clemens M. Schirmer has published 229 articles and abstracts on conditions like Brain Aneurysm. You can view a list of Dr. Clemens M. Schirmer's latest peer-reviewed publications and clinical trial participation on their profile to see if they are active in new treatments.

Does Dr. Clemens M. Schirmer accept my insurance?

Dr. Clemens M. Schirmer accepts most major insurance plans, including Aetna and Capital Blue Cross. We recommend calling the office directly at 800-275-6401 to verify that your specific plan is currently accepted before your visit.

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

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