Philip Seo, M.D.

Headshot of Philip Seo
  • Director, The Johns Hopkins Vasculitis Center
  • Associate Professor of Medicine

Specializes in: Adolescents (12-18 years), Adults (18+ years)


Languages: English, French, Spanish


Giant Cell Arteritis, Polyarteritis Nodosa, Rheumatology, Takayasu's Arteritis, Vasculitis more

Research Interests

Granulomatosis with Polyangiitis, Microscopic polyargiitis, Churg-Strauss syndrome, Talcayasu's arteritis more

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Main Phone

Outside of Maryland & Washington D.C.

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Johns Hopkins Bayview Medical Center

Appointment Phone: 443-997-1552
5501 Hopkins Bayview Circle
Asthma and Allergy Center
Baltimore, MD 21224
Phone: 410-550-6825
Johns Hopkins Bayview Medical Center - Google Maps


Dr. Philip Seo is an Associate Professor in the Division of Rheumatology. A graduate of Harvard College and the College of Physicians and Surgeons at Columbia University, Dr. Seo completed his Internal Medicine training as a member of the Osler Medical Service at the Johns Hopkins Hospital. Since then, he has worked at Johns Hopkins in several capacities, including as a hospitalist at Johns Hopkins Bayview Medical Center, and as an Assistant Chief of Service of the Department of Medicine at the Johns Hopkins Hospital, before joining the Division of Rheumatology.

Dr. Seo is the Director of the Johns Hopkins Vasculitis Center and Director of the Johns Hopkins Rheumatology Fellowship Program.  His clinical interests lie in the assessment and treatment of patients with systemic vasculitis, in particular, the ANCA-associated vasculitides, which include granulomatosis with polyangiitis, microscopic polyangiitis, and eosinophilic granulomatosis with polyangiitis. more


  • Director, The Johns Hopkins Vasculitis Center
  • Director, Johns Hopkins Rheumatology Fellowship Program
  • Associate Professor of Medicine

Departments / Divisions

Centers & Institutes



  • MD; Columbia University College of Physicians and Surgeons (1997)


  • Internal Medicine; Johns Hopkins University School of Medicine (2000)


  • Rheumatology; Johns Hopkins University School of Medicine (2004)

Board Certifications

  • American Board of Internal Medicine (Internal Medicine) (2000)
  • American Board of Internal Medicine (Rheumatology) (2004)

Research & Publications

Research Summary

His research interests are the assessment and treatment of ANCA-associated vasculitides, including Churg Strauss Syndrome, Granulomatosis with polyangiitis, and Microscopic Polyangiitis.

Clinical Trial Keywords

Ritoximob for ANCA-associated Vasculitis, Pexivas, CTLA4 Ig

Selected Publications

View all on PubMed

Malm IJ, Mener DJ, Kim J, Seo P, Kim YJ. Otolaryngological Progression of Granulomatosis with Polyangiitis after Systemic Treatment with Rituximab. Otolaryngol Head Neck Surg. 2013 Oct 23. [Epub ahead of print] PMID: 24154746

Grayson PC, Cuthbertson D, Carette S, Hoffman GS, Khalidi NA, Koening CL, Langford CA, Maksimowicz-McKinnon K, Monach PA, Seo P, Specks U, Ytterberg SR, Merkel PA; New features of disease after diagnosis in 6 forms of systemic vasculitis. Vasculitis Clinical Research Consortium. J Rheumatol. 2013 Nov;40(11):1905-12. doi: 10.3899/jrheum.121473. Epub 2013 Aug 1. PMID: 23908447 [PubMed - in process]

Wilfong EM, Seo P. Vasculitis in the intensive care unit. Best Pract Res Clin Rheumatol. 2013 Feb;27(1):95-106. doi: 10.1016/j.berh.2013.01.002. Review. PMID: 23507060

Malik MU, Pandian V, Masood H, Diaz DA, Varela V, Dávalos-Balderas AJ, Parra-Cardenas M, Seo P, Francis HW. Spectrum of immune-mediated inner ear disease and cochlear implant results. Laryngoscope. 2012 Nov;122(11):2557-62. doi: 10.1002/lary.23604. Epub 2012 Sep 18. PMID: 22991211

Geetha D, Seo P. Advances in therapy for ANCA-associated vasculitis. Curr Rheumatol Rep. 2012 Dec;14(6):509-15. doi: 10.1007/s11926-012-0284-0. Review. PMID: 22895899

Geetha D, Seo P, Ellis C, Kuperman M, Levine SM. Persistent or new onset microscopic hematuria in patients with small vessel vasculitis in remission: findings on renal biopsy. J Rheumatol. 2012 Jul;39(7):1413-7. doi: 10.3899/jrheum.111608. Epub 2012 Jun 1. PMID: 22660803

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