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Photo of Dr. Grant Louie

Grant H Louie, M.D., M.H.S.

Assistant Professor of Medicine


Appointment Phone


Main Location

Johns Hopkins Bayview Medical Center

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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  • Assistant Professor of Medicine

Centers & Institutes



Johns Hopkins Bayview Medical Center

Appointment Phone: 443-997-1552

5501 Hopkins Bayview Circle
Asthma and Allergy Center 1B.1
Baltimore, MD 21224 map
Phone: 410-550-8089


Rheumatology, Spondyloarthritis


Dr. Grant H. Louie is an assistant professor of medicine at the Johns Hopkins University School of Medicine. His areas of clinical expertise include myositis, rheumatology and spondyloarthritis.

He received his medical degree from MCP Hahnemann University, completed internal medicine residency at California Pacific Medical Center, and received his rheumatology fellowship training at the National Institutes of Health. 

Upon completion of his fellowship, he pursued formal education in Clinical Investigation through a collaborative training program between the National Institutes of Health and Duke University School of Medicine where he received his M.H.S. degree. Dr. Louie joined the Johns Hopkins faculty in 2010.

Dr. Louie evaluates patients primarily at the Johns Hopkins Arthritis Center but also sees patients with inflammatory myopathies at the Johns Hopkins Myositis Center.

He has a strong research interest in the field of spondyloarthritis. more

    Additional Information

  • Education +


    • Drexel University College of Medicine / MD (2001)


    • American Board of Internal Medicine / Rheumatology (2007)
  • Research & Publications +

    Research Summary

    Dr. Louie has a strong research interest in the field of spondyloarthritis. He has established a growing cohort of patients with spondyloarthritis; some have longstanding ankylosing spondylitis, while others have early disease with nonradiographic axial spondyloarthritis.

    With his ongoing and active experience in outcomes and epidemiologic research, Dr. Louie will be using the cohort to capture longitudinal data (patient self-report, clinical and imaging) and to store biological specimens from patients with spondyloarthritis. The data will be analyzed to more precisely phenotype patients with spondyloarthritis, reflective of the diversity of the disease expression. Stored biological specimens permit biochemical, genetic and other laboratory studies to be conducted that may facilitate the understanding of the etiopathogenesis of disease and the identification of novel therapeutic targets.

  • Academic Affiliations & Courses +
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