Dr. Christoph J. Griessenauer

Gregory M Weiner, MD, is a board certified and fellowship trained cerebrovascular and endovascular neurosurgeon who specializes in the treatment of vascular disorders of the brain and spine including stroke, intercranial hemorrhage, aneurysms, vascular malformations and stenosis of the blood vessels in the brain and neck.|He also provides surgical care for people with facial pain, hemifacial spasms and degenerative cervical and lumbar spine disease.|Dr. Weiner received his medical degree from Tulane University School of Medicine. He completed his residency at University of Pittsburgh Medical Center, where he also completed his fellowship in endovascular neurosurgery.|“I’m proud of building the first comprehensive stroke center in NEPA and forming the first brain aneurysm support group of NEPA,” says Dr. Weiner, who won Geisinger’s Top Patient Experience Award two years in a row.|Dr. Weiner — who moved to his wife’s hometown of Scranton after living in California — adds that he enjoys seeing a variety of patients and applying the latest technology to their individualized treatment plans. He also appreciates the personal aspects of practicing medicine.|“I became a doctor so I could treat complex diseases — and support patients and their families as they navigate a difficult experience together,” he says. Dr. Weiner is rated as an Advanced provider by MediFind in Carotid Artery Surgery. His top areas of expertise are Brain Aneurysm, Stroke, Chronic Subdural Hematoma, Thrombectomy, and Stent Placement.

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 rated as a Distinguished provider by MediFind in Carotid Artery Surgery. His top areas of expertise are Brain Aneurysm, Stroke, Subarachnoid Hemorrhage, Thrombectomy, and Stent Placement.

Dr. Goren specializes in cerebrovascular and endovascular neurosurgery. His clinical interests include stroke and its surgical treatment, the treatment of idiopathic intracranial hypertension, treatment of brain aneurysms, arteriovenous malformations and fistulas, cavernous malformations, moyamoya disease, carotid stenosis, trigeminal neuralgia and hemifacial spasm. He earned his medical degree from Semmelweis University, completed his residency at the Sheba Medical Center in Israel and completed his fellowship in cerebrovascular and endovascular neurosurgery at the Swedish Neuroscience Institute in Seattle. He is an associate program director for the Geisinger neurosurgical residency program and a clinical assistant professor at the Geisinger Commonwealth School of Medicine. Dr. Goren speaks English and Hebrew. Dr. Goren is rated as a Distinguished provider by MediFind in Carotid Artery Surgery. His top areas of expertise are Stroke, Brain Aneurysm, Subarachnoid Hemorrhage, Thrombectomy, and Stent Placement.