Ryan Felling, M.D., Ph.D.

Ryan Jordan Felling, M.D., Ph.D.

Headshot of Ryan Felling
  • Director, Pediatric Stroke Program
  • Associate Professor of Neurology

Languages: English, Spanish


Acute Stroke Care, Carotid Artery Disease, Carotid Artery Stenosis, Cerebrovascular Diseases, Intracerebral Hemorrhage, Ischemic Heart Disease, Moyamoya Disease, Neurology, Pediatric Neurology, Pediatric Neurovascular Disorders, Pediatric Stroke, Stroke, Stroke Imaging, Stroke Prevention, Stroke Recovery, Stroke Rehabilitation, Transient Ischemic Attack ...read more

Research Interests

In the laboratory, Dr. Felling is actively investigating the cellular basis for repair and recovery following injury in the immature brain. His research seeks to define how neural progenitors respond to injury and how this response can be modified to improve recovery. ...read more

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Kennedy Krieger Institute

Appointment Phone: 443-923-9440
801 N. Broadway
Baltimore, MD 21205 map


Dr. Felling is the director of the Johns Hopkins Pediatric Stroke Program and specializes in the evaluation and treatment of children with a wide range of cerebrovascular disorders. With combined training in child neurology and vascular neurology he offers expertise in both the acute diagnosis and treatment of stroke as well as longitudinal management of the neurological consequences of stroke in children.

Dr. Felling earned both his M.D. and his Ph.D. in neuroscience at Penn State College of Medicine. He completed residency training in pediatrics at the Children’s Hospital of Philadelphia. He also completed residency training in pediatric neurology and a fellowship in vascular neurology at Johns Hopkins.

Dr. Felling's goal is to improve the clinical care of patients through the development of efficient pathways for the rapid evaluation and treatment of children presenting with stroke. He is part of a multidisciplinary team of providers that care for children with cerebrovascular disorders. Clinical research efforts are aimed at improving neurological function in children following stroke and other brain injuries.

...read more


  • Director, Pediatric Stroke Program
  • Associate Professor of Neurology

Departments / Divisions

Centers & Institutes



  • MD; Penn State College of Medicine (2007)


  • Pediatrics; Children's Hospital of Philadelphia (2009)
  • Pediatric Neurology; Johns Hopkins University School of Medicine (2012)


  • Vascular Neurology; Johns Hopkins University School of Medicine (2013)

Board Certifications

  • American Board of Psychiatry and Neurology (Neurology/Special Child Neurology) (2012)
  • American Board of Psychiatry and Neurology (Vascular Neurology) (2014)

Research & Publications

Selected Publications

View all on PubMed

Dellinger, B.B., Felling, R., and Ordway, R.W. Genetic modifiers of the Drosophila NSF mutant, comatose, include a temperature-sensitive paralytic allele of the calcium channel alpha1-subunit gene, cacophony. Genetics. 2000;155(1):203-211.

Kawasaki, F., Felling, R., and Ordway, R.W. A temperature-sensitive paralytic mutant defines a primary synaptic calcium channel in Drosophila. J Neurosci. 2000;20(13):4885-4889.

Brooks, I.M., Felling, R., Kawasaki, F. and Ordway, R.W. Genetic analysis of a synaptic calcium channel in Drosophila: Intragenic modifiers of a temperature-sensitive paralytic mutant of cacophony. Genetics. 2003;164(1):163-71.

Felling, R.J., Romanko, M.J., Snyder, M.J., Rothstein, R.P., Ziegler, A.N., Yang, Z., Givogri, M., Bongarzone, E. and Levison, S.W. Neural stem/progenitor cells initiate a regenerative response to perinatal hypoxia/ischemia. J Neurosci. 2006;26:4359-4369.

Alagappan D., Lazzarino D.A., Felling R.J., Balan M., Kotenko S.V., Levison S.W. Brain injury expands the numbers of neural stem cells and progenitors in the SVZ by enhancing their responsiveness to EGF. ASN Neuro. 2009;1(2):pii: e00009.

Activities & Honors


  • First Place, Penn State Graduate Student Exhibition, 2003
  • Guy McKhann Teaching Award, 2012
  • Jay Slotkin Award for Research Achievement in Residency, 2012
  • Judith Bond MD/PhD Award for outstanding research and clinical achievement, 2007

Videos & Media

Lectures and Presentations

  • Neural stem cells react to perinatal hypoxic/ischemic brain insults
    Society for Neuroscience Annual Meeting, New Orleans, LA (01/01/2003)
  • Perinatal hypoxia/ischemia enhances the EGF-responsiveness of subventricular zone neural stem cells
    Society for Neuroscience Annual Meeting, San Diego, CA (01/01/2004)
  • A Regenerative Response of Endogenous Neural Stem Cells to Perinatal Hypoxic/Ischemic Brain Damage
    National MD/PhD Student Conference, Keystone, CO (01/01/2005)
  • Approach to the Diagnosis and Initial Management of Acute Weakness in Children
    Department of Pediatrics Grand Rounds, Baltimore, MD (06/01/2012)
    St. Agnes Hospital
  • Pediatric Stroke
    Maryland Stroke Center Consortium, Baltimore, MD (01/16/2013)
    American Heart Association
  • Approach to the Diagnosis and Initial Management of Acute Weakness in Children
    Department of Pediatrics Grand Round, Baltimore, MD (02/22/2013)
    Mercy Hospital
  • Stroke in Infants and Children
    Leonardtown, MD (03/25/2013)
    MedStar St. Marys Hospital
  • Stroke in Infants and Children
    Towson, MD (05/23/2013)
    GBMC Hospital
  • Stroke in Infants and Children
    Clinton, MD (05/29/2013)
    MedStar Southern Maryland Hospital

Recent News Articles and Media Coverage

Know stroke symptoms to watch for in children, WBAL-TV (05/19/2015)

Strokes are rare, but possible, in kids, The Journal-News (11/11/2014)

Patient Ratings & Comments

The Patient Rating score is an average of all responses to physician related questions on the national CG-CAHPS Medical Practice patient experience survey through Press Ganey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Comments are also gathered from our CG-CAHPS Medical Practice Survey through Press Ganey and displayed in their entirety. Patients are de-identified for confidentiality and patient privacy.

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