• Chady Abboud Leon MD

  • Physician - Hematology/Oncology

    • Oncology
    • 1000 North Oak Avenue 3A2 Marshfield, WI 54449


Fellowship, Chief Fellow - Oncology and Hematology, MD Anderson Cancer Center at Cooper University Hospital, Camden, NJ
Fellow of the Year, Cooper University Hospital, Camden, NJ
Fellow of the Year, Cooper University Hospital, Camden, NJ
Residency, Internal Medicine, Mount Sinai School of Medicine (MSSM) - Englewood Hospital and Medical Center, Englewood, NJ
Residency, Department of Internal Medicine, Oldenburg Hospital, Klinikum Oldenburg, Germany
Residency, Department of Internal Medicine , Dessau Hospital, Stadtisches Klinikum Dessau, Germany
Physician in training, Tal-Arboush Clinic, Tal-Arboush, Syria
MD, School of Medicine, University of Damascus , Damascus, Syria
Student Rotation, Department of Oncology and Hematology, Benjamin Franklin University Hospital of the Free University of Berlin, Berlin, Germany
Student Rotation, Department of Oncology and Hematology, American University of Beirut-Medical Center, Beirut, Lebanon

Work Experience

2016 to Present:
Attending Physician, Memorial Medical Center, Neillsville, WI
2014 to Present:
Oncologist / Hematologist, Marshfield Clinic Inc. - Marshfield Center, Marshfield, WI
2014 to Present:
Attending Physician, MCHS Hospitals Inc. d/b/a Marshfield Medical Center, Marshfield, WI

Select Publications

  • Georgi A, Schumacher J, Leon CA, Wolf AV, Klein K, Bohenz KV, Schirmbeck F, Strohmaier J, Propping P, Schulze TG, Rietschel M, Nothen MM, Cichon S, Jamra RA. No association between genetic variants at the DGCR2 gene and schizophrenia in a German sample. Psychiatr Genet.. 2009 Apr;19(2):104.
    PubMed ID: 19668116
  • Leon CA, Schumacher J, Kluck N, Herold C, Schulze TG, Propping P, Rietschel M, Cichon S, Nothen MM, Jamra RA. Association study of the GRIA1 and CLINT1 (Epsin 4) genes in a German schizophrenia sample. Psychiatr Genet.. 2011 Apr;21(2):114.
    PubMed ID: 21116212
  • Leon CA, Georges P, Zaeeter W. Vitamin B12 deficiency. N Engl J Med.. 2013 May;368(21):2041.
    PubMed ID: 23697528
  • Georges P, Rajagopalan K, Leon C, Singh P, Ahmad N, Nader K, Kubicek GJ. Chemotherapy advances in locally advanced head and neck cancer. World J Clin Oncol. 2014 Dec 10;5(5):966-72.
    PubMed ID: 25493232
  • Nader K, Behrens DS, Leon CA, Schwarting R, Ferber A. Iatrogenic lymphoproliferative disorder. Am J Hematol. 2014 Jul;89(7):787-8.
    PubMed ID: 24729413
  • Bilen MA, Hariri H, Leon C, Guo CC, Kuban DA, Pisters LL, Tu SM. Positive FDG-PET/CT scans of a residual seminoma after chemotherapy and radiotherapy: case report and review of the literature. Clin Genitourin Cancer. 2014 Aug;12(4):e147-50.
    PubMed ID: 24674785
  • Yachoui R, Leon C, Sitwala K, Kreidy M. Pulmonary MALT Lymphoma in Patients with Sjögren's Syndrome. Clin Med Res. 2017 Jun;15(1-2):6-12.
    PubMed ID: 28487450