Nils Petersen, MD/PhD, MSc

Assistant Professor of Neurology; Staff Neurointensivist, Neuroscience Intensive Care Unit

Departments & Organizations

Neurology: Neuro Intensive Care & Neurological Emergencies | Petersen Lab | Stroke: Stroke Center; Stroke Telemedicine Program

Center for Neuroepidemiology and Clinical Neurological Research

Yale Medicine


Nils Petersen obtained his medical degree and doctorate in neuroscience from Christian-Albrechts University in Kiel, Germany. He completed his residency in Neurology at Mount Sinai Hospital in New York, NY, where he also served as chief resident in his final year. He then went on to pursue fellowship training in Vascular Neurology at Columbia University and simultaneously completed a Masters degree in Patient-Oriented Research at the Mailman School of Public Health. He next completed fellowship in Neurocritical Care at Massachusetts General Hospital and also obtained certification in Neurovascular Ultrasound from the American Society of Neuroimaging.

He has been recruited to Yale to design and implement a state-of-the-art Neurovascular Ultrasound Lab, which will be available for both patient services and research endeavors. His clinical and research interests are in using ultrasound and novel neuromonitoring modalities to better understand brain blood flow regulation. His ongoing clinical care of patients in the Neurologic Intensive Care Unit and Stroke Service continues to inspire his research pursuits, with the goal of improving patient outcomes and preventing neurologic worsening after acute ischemic stroke.

Education & Training

MSc Mailman School of Public Health, Columbia University (2013)
MD/PhD Christian-Albrechts-University (2004)
Fellowship Massachusetts General Hospital/Brigham and Women's Hospital
Fellowship Columbia University/New York Presbyterian
Residency Mount Sinai Medical Center
Residency University Hospital Schleswig-Holstein
Board Certification AB of Psychiatry & Neurology, Neurology (2010)
Board Certification United Council for Neurologic Subspecialties, Neurocritical Care (2015)

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Contact Info

Nils Petersen, MD/PhD, MSc
Patient Care Locations
Yale NeurologyYale New Haven Hospital
20 York Street

New Haven, CT 06510
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Yale NeurologyYale New Haven Hospital Saint Raphael Campus
1450 Chapel Street

New Haven, CT 06511
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Mailing Address
Neurology15 York Street
PO Box 208018

New Haven, CT 06520-8018