Hyon Ju Park, M.D. | Rheumatology



Internal Medicine


Lankenau Medical Building West
100 East Lancaster Ave.
Suite 137
Wynnewood, PA 19096

Fax: (610) 896-9652

Main Line Health Center
1999 Sproul Road
Suite 26
Broomall, PA 19008

Phone: (610) 896-8400
Fax: (610) 896-9652

Education & Training

  • Barnard College, Columbia University (1999-2003)
  • Icahn School of Medicine (Mount Sinai) (2003-2007)
  • Internal medicine residency at Washington University in Saint Louis (2007-2010)
  • Rheumatology Fellowship at Washington University in Saint Louis (2010-2012)
  • NIH Research Fellow at Washington University in Saint Louis studying complements and innate immunity (2012-2013)


  • Rheumatologist at Emkey Arthritis and Osteoporosis Center (2013-2015)
  • Rheumatologist at Christiana Care (2015-2019)
  • Rheumatologist at Main Line Rheumatology and Osteoporosis (2019 – current)


Lankenau Medical Center


Cathelicidin family of antimicrobial peptides: proteolytic processing and protease resistance.

Shinnar AE, Butler KL, Park HJ. Bioorg Chem. 2003 Dec;31(6):425-36. doi: 10.1016/s0045-2068(03)00080-4. PMID: 14613764 Review.

TNF-alpha antagonism and cancer risk in rheumatoid arthritis: is continued vigilance warranted?

Park HJ, Ranganathan P. Discov Med. 2012 Mar;13(70):229-34. PMID: 22463799

Neoplastic and paraneoplastic vasculitis, vasculopathy, and hypercoagulability.

Park HJ, Ranganathan P. Rheum Dis Clin North Am. 2011 Nov;37(4):593-606. doi: 10.1016/j.rdc.2011.09.002. PMID: 22075199

Using mutagenesis and structural biology to map the binding site for the Plasmodium falciparum merozoite protein PfRh4 on the human immune adherence receptor.

Park HJ, Guariento M, Maciejewski M, Hauhart R, Tham WH, Cowman AF, Schmidt CQ, Mertens HD, Liszewski MK, Hourcade DE, Barlow PN, Atkinson JP. J Biol Chem. 2014 Jan 3;289(1):450-63. doi: 10.1074/jbc.M113.520346. Epub 2013 Nov 8. PMID: 24214979

Autoimmunity: homeostasis of innate immunity gone awry.

Park HJ, Atkinson JP. J Clin Immunol. 2012 Dec;32(6):1148-52. doi: 10.1007/s10875-012-9815-8. Epub 2012 Oct 11. PMID: 23054347

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