Skip Navigation
Find a Doctor


Photo of Dr. Howard Mark Lederman, MD PhD

Howard Mark Lederman, MD PhD

Director, Immunodeficiency Clinic
Professor of Pediatrics
Appointment Phone


Main Location

The Johns Hopkins Hospital

View All Locations
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)

Learn more about our international patient services »


  • Director, Immunodeficiency Clinic
  • Director, Ataxia-Telangiectasia Clinical Center
  • Director, Pediatric Immunology Laboratory
  • Professor of Pediatrics

Centers & Institutes

  • Ataxia Telangiectasia Clinical Center


Allergy and Immunology, Antibody Deficiency, Ataxia-Telangiectasia, Chronic Granulomatous Disease, Common Variable Immunodeficiency, Complement Deficiency, DiGeorge Syndrome, Gamma Globulin Therapy, Hyper-IgE Syndrome, Hyper-IgM Syndrome, Hypogammaglobulinemia, IgA Deficiency, IgM Deficiency, Leukocyte Adhesion Deficiency, Primary Immunodeficiency Diseases, Severe Combined Immunodeficiency, Wiskott-Aldrich Syndrome, X-linked Agammaglobulinemia

Research Interests

Severe combined immunodeficiency; Primary Immunodeficiency Diseases; Wiskott-Aldrich syndrome; Chronic granulomatous disease and other disorders of phagocytes; Ataxia-Telangiectasia; Common variable immunodeficiency; Complement deficiency; DiGeorge syndrome; Hyper-IgE syndrome; Hyper-IgM syndrome; Hypogammaglobulinemia; IgA deficiency; IgM deficiency; Immunoglobulin therapy; IVIG; X-linked agammaglobulinemia; Antibody deficiency


  • English


American Association of Immunologists
American Society for Microbiology
Clinical Immunology Society
Society for Pediatric Research
Infectious Diseases Society of America

Clinical Trial Keywords

  • Immunoglobulin
  • Gamma globulin
  • Ataxia- Telangiectasia

Additional Resources

Additional Resources +
  • Education +


    • University of Michigan Rackham School of Graduate Studies (Ann Arbor MI ) (1978)
    • University of Michigan Medical School (Ann Arbor MI ) (1977)


    • Johns Hopkins University School of Medicine / Pediatrics (Baltimore MD ) (1981)


    • Hospital for Sick Children / Immunology (TorontoOntario) (1983)


    • Pediatrics, American Board of Pediatrics (1984)
  • Research & Publications +
  • Academic Affiliations & Courses +
  • Activities & Honors +
  • Videos & Media +
  • Events +
  • Contact & Locations +


    The Johns Hopkins Hospital
    600 N. Wolfe Street
    Baltimore, MD 21287
    Phone: 410-955-5883
    Appointment Phone: 410-955-5883
    Fax: 410-955-0229
    Location Map


    • Pediatrics - Allergy and Immunology

Is This You? Edit Profile


© The Johns Hopkins University, The Johns Hopkins Hospital, and Johns Hopkins Health System. All rights reserved.