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James K Porterfield, MD

Assistant Professor of Medicine
Appointment Phone


Main Location

Johns Hopkins Medicine - GBMC

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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 +1-410-502-0773 (7a.m. to 6p.m., EST, Mon-Fri)

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  • Assistant Professor of Medicine

Centers & Institutes

  • Heart and Vascular Institute


Angina, Arrhythmia, Atherosclerosis, Atrial Fibrillation, Atrial Flutter, Atrial Septal Defects, Cardiology, Cardiomyopathy, Cardiovascular Disease, Cardioversion, Chest Pain, Clinical Cardiology, Congenital Heart Disease - Adult, Congestive Heart Failure, Coronary Artery Disease, Dyslipidemia, Echocardiography, General Cardiology, Heart Disease, High Cholesterol, Hypertrophic Cardiomyopathy, Irregular Heartbeat, Palpitations, Stress Testing, Transesophogeal Echocardiography, Transthoracic Echocardiogram, Valvular Heart Disease


  • English
Additional Resources +
  • Education +


    • Medical College of Virginia School of Medicine (Richmond VA) (1980)


    • Johns Hopkins University School of Medicine / Medicine (Baltimore MD) (1983)


    • Johns Hopkins University School of Medicine / Cardiology (Baltimore MD) (1988)


    • American Board of Internal Medicine / Cardiovascular Disease (1987)
    • American Board of Internal Medicine / Internal Medicine (1983)
  • Research & Publications +
  • Academic Affiliations & Courses +
  • Activities & Honors +
  • Videos & Media +
  • Events +
  • Contact & Locations +


    Johns Hopkins Medicine - GBMC
    6701 N. Charles Street
    Physicians Pavilion East
    Towson, MD 21204
    Phone: 443-849-8989
    Appointment Phone: 443-997-0270
    The Johns Hopkins Hospital
    600 N. Wolfe Street
    Hospital Main Entrance - Sheikh Zayed Tower
    Baltimore, MD 21287
    Phone: 443-442-2000
    Appointment Phone: 443-997-0270
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    • Medicine

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