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Ronald Peter Lesser, M.D.

Director, Clinical Neurophysiology Fellowship Program
Professor of Neurology


Appointment Phone


Main Location

The Johns Hopkins Hospital

Out-of-State & International Patients +
Out of State Patients

Call 410-464-6641 (8a.m. to 6p.m., EST, Mon-Fri)

Learn more about our out-of-state patient services »

International Patients

Call +1-410-502-7683 (7a.m. to 6p.m., EST, Mon-Fri)

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  • Director, Clinical Neurophysiology Fellowship Program
  • Professor of Neurology
  • Professor of Neurosurgery

Centers & Institutes



The Johns Hopkins Hospital

Appointment Phone: 410-955-1270

600 N. Wolfe Street
Sheikh Zayed Tower
Baltimore, MD 21287 map
Phone: 410-955-1270
Fax: 410-955-0751

Johns Hopkins Outpatient Center

Appointment Phone: 410-955-1270

601 N. Caroline Street
Baltimore, MD 21287 map

Johns Hopkins Bayview Medical Center

Appointment Phone: 410-550-5624

4940 Eastern Avenue
Baltimore, MD 21224 map


Epilepsy, Neurology

Research Interests

epilepsy, clinical neurophysiology, functional brain mapping, brain stimulation


Dr. Ronald Lesser received his medical degree from the University of Southern California School of Medicine. He then completed an internship in pediatrics at the Mayo Graduate School of Medicine and a residency in psychiatry at the New York State Psychiatric Institute. He went on to complete a research fellowship in neurophysiology and electroencephalography and a residency in neurology at the Neurological Institute at Columbia-Presbyterian Medical Center. Dr. Lesser then completed a fellowship in electroencephalography at the Cleveland Clinic Foundation.

Now a Professor of Neurology and Neurosurgery at Johns Hopkins, Dr. Lesser focuses on the diagnosis and treatment of seizure disorders and the use of electrophysiologic techniques for the evaluation of central nervous system disorders. He is particularly interested in evaluating epileptic seizures that have been difficult to diagnose or have not responded to medication. He has a long-standing interest in the use of surgery for those patients that have not responded to medication. He is further interested in differentiating epileptic seizures from other disorders, such as fainting spells (syncope), that can imitate epileptic seizures.

Dr. Lesser is investigating the use of computer and microprocessor based digital signal processing techniques for the diagnosis and treatment of epilepsy and evaluation of central nervous system function. He is working on the development of new forms of treatment for patients with intractable epileptic seizures using electrical stimulation and temperature control.

Dr. Lesser currently sees patients at The Johns Hopkins Outpatient Center located in Baltimore on Mondays and Wednesdays. more

    Additional Information

  • Education +


    • University of Southern California Keck School of Medicine / MD; Medicine (1970)


    • New York State Psychiatric Institute / Psychiatry (1976)


    • Cleveland Clinic (1979)
    • Columbia Presbyterian Medical Center / Neurology (1979)


    • American Board of Psychiatry & Neurology / Neurology (1980)
    • American Board of Psychiatry & Neurology / Psychiatry (1978)
  • Research & Publications +

    Selected Publications View all on PubMed

    205 articles
    64 book chapters
  • Academic Affiliations & Courses +
  • Activities & Honors +


    • American Academy of Neurology
    • American Clinical Neurophysiology Society
    • American Epilepsy Society
    • American Neurological Association
  • Videos & Media +
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