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Our Team

Our team of highly-experienced neurologists, neuro-ophthalmologists, and neurosurgeons are leaders in the field of recognizing and treating normal pressure hydrocephalus, as well as idiopathic intracranial hypertension (IIH), sometimes referred to as pseudotumor cerebri (PTC).

The complicated nature of both these conditions requires doctors with years of experience in evaluating and treating large numbers of affected patients. Johns Hopkins physicians and surgeons are pioneers in this field, having created a new surgical treatment method using a specially designed valve.

The rigorous interdisciplinary medicine our doctors’ practice requires they be well-versed in other neurological conditions, making their diagnosis and treatment options broad and wide-ranging. Our doctors’ primary goal is to accurately recognize and treat those patients with these conditions, as they are often misdiagnosed.

Our Doctors

Photo of Dr. Ari Meir Blitz, M.D.

Blitz, Ari Meir, M.D.

Assistant Professor of Radiology and Radiological Science
Photo of Dr. George Issa Jallo, M.D.

Jallo, George Issa, M.D.

Professor of Neurosurgery
Professor of Oncology
Professor of Pediatrics
Clinical Director, Pediatric Neurosurgery
Photo of Dr. Abhay Rajeshwar Moghekar, M.B.B.S.

Moghekar, Abhay Rajeshwar, M.B.B.S.

Assistant Professor of Neurology
Director, Adult Hydocephalus and CSF Disorders Program, Department of Neurology
Photo of Dr. Alessandro Olivi, M.D.

Olivi, Alessandro, M.D.

Professor of Neurosurgery
Professor of Oncology
Chairman, Department of Neurosurgery, Johns Hopkins Bayview Medical Center
Director of Neurosurgical Oncology
Photo of Dr. Sevil Yasar, M.D., Ph.D.

Yasar, Sevil, M.D., Ph.D.

Associate Professor of Medicine
Associate Professor of Neurology
Associate Professor


Team Specialists

Dolan, David
Neuropsychometrist, Sleep Center

Dolan, Hillary
Neuropsychometrist, Sleep Center

Khingelova, Kristina
Physician Assistant

Wemmer, Jan
Nurse Practitioner

Office Staff

Bennett, Gennie
Sr Medical Office Coordinator
Department of Neurology Inpatient Coordinator

Counts, Tammy
Program Manager of the Normal Pressure Hydrocephalus Center

Wallace, Lisa
Medical Office Coordinator for Dr. Daniele Rigamonti
Department of Neurosurgery


Scheduled for Neurosurgery at Johns Hopkins?

Watch the patient experience video before you come

Related Media

Obstructive hydrocephalus caused by a brain tumor - Watch Adam's story

Pseudotumor Cerebri – Brain Stent Offers Alternative to Shunt for Fixing Potentially Blinding Condition

Pseudotumor Cerebri – Watch Dr. Moghekar and his patient describe how a new surgery relieved her pseudo-tumor

Watch a recording of our patient seminar on normal pressure hydrocephalus: Gait Disorders in the Elderly

Out-of-State and International Patients - Find Out More


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