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Jonathan Jun, MD

Assistant Professor of Medicine
Appointment Phone


Main Location

Johns Hopkins Outpatient Center

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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)

Learn more about our international patient services »


  • Assistant Professor of Medicine


Critical Care Medicine, Pulmonary and Critical Care Medicine, Pulmonary Medicine, Sleep Disorders


  • English
  • Mandarin


American Academy of Sleep Medicine

Association of Critical Care Medicine

American Thoracic Society


Additional Resources +
  • Education +


    • University of Maryland School of Medicine (Baltimore MD) (2003)


    • Thomas Jefferson University Hospital (Philadelphia PA) (2006)


    • Johns Hopkins University School of Medicine / Pulmonary and Critical Care Medicine (Baltimore MD) (2011)


    • American Board of Internal Medicine / Pulmonary Disease (2013)
    • American Board of Internal Medicine / Sleep Medicine (2011)
    • American Board of Internal Medicine / Internal Medicine (2006)
  • Research & Publications +
  • Academic Affiliations & Courses +
  • Activities & Honors +
  • Videos & Media +
  • Events +
  • Contact & Locations +


    Johns Hopkins Outpatient Center
    601 N. Caroline Street
    Baltimore, MD 21287
    Phone: 443-287-3313
    Appointment Phone: 443-287-3313
    Fax: 443-287-3312
    Location Map
    Johns Hopkins Bayview Medical Center
    5501 Hopkins Bayview Circle
    JHAAC Room Room 5B.81
    Baltimore, MD 21224
    Phone: 410-550-0115
    Appointment Phone: 443-287-3313
    Fax: 410-550-2612
    Location Map


    • Medicine - Pulmonary and Critical Care Medicine

    For Research Inquiries Contact

    Michelle Guzman

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