Fellowship, Chief Fellow - Oncology and Hematology, MD Anderson Cancer Center at Cooper University Hospital, Camden, NJ
2011:
Residency, Internal Medicine, Mount Sinai School of Medicine (MSSM) - Englewood Hospital and Medical Center, Englewood, NJ
2008:
Residency, Department of Internal Medicine, Oldenburg Hospital, Klinikum Oldenburg, Germany
2006:
Residency, Department of Internal Medicine , Dessau Hospital, Stadtisches Klinikum Dessau, Germany
2003:
Physician in training, Tal-Arboush Clinic, Tal-Arboush, Syria
2002:
MD, School of Medicine, University of Damascus , Damascus, Syria
2002:
Student Rotation, Department of Oncology and Hematology, Benjamin Franklin University Hospital of the Free University of Berlin, Berlin, Germany
2000:
Student Rotation, Department of Oncology and Hematology, American University of Beirut-Medical Center, Beirut, Lebanon
Work Experience
2016 to Present:
Hematologist/Oncologist, Marshfield Clinic Health System, Inc. Marshfield Medical Center - Neillsville, Neillsville, WI
2014 to Present:
Hematologist/Oncologist, Marshfield Clinic Health System, Inc. Marshfield Medical Center - Marshfield, Marshfield, WI
2014 to Present:
Attending Physician, MCHS Hospitals, Inc. d/b/a Marshfield Medical Center
Board Certifications
2014 to 2024:
American Board of Internal Medicine - Oncology
2015 to 2024:
American Board of Internal Medicine - Hematology
Honors & Awards
2013:
Fellow of the Year, Cooper University Hospital, Camden, NJ
2014:
Fellow of the Year, Cooper University Hospital, Camden, NJ
Select Publications
Georgi A, Schumacher J, Leon CA, Wolf AV, Klein K, Bohenz KV,...Jamra RA. (2009 April). No association between genetic variants at the DGCR2 gene and schizophrenia in a German sample. Psychiatr Genet.. 19(2):104.
PubMed ID:
19668116
Leon CA, Schumacher J, Kluck N, Herold C, Schulze TG, Propping P,...Jamra RA. (2011 April). Association study of the GRIA1 and CLINT1 (Epsin 4) genes in a German schizophrenia sample. Psychiatr Genet.. 21(2):114.
PubMed ID:
21116212
Leon CA, Georges P, Zaeeter W. (2013 May). Vitamin B12 deficiency. N Engl J Med.. 368(21):2041.
PubMed ID:
23697528
Georges P, Rajagopalan K, Leon C, Singh P, Ahmad N, Nader K, Kubicek GJ. (2014 Dec 10). Chemotherapy advances in locally advanced head and neck cancer. World J Clin Oncol. 5(5):966-72.
PubMed ID:
25493232
Nader K, Behrens DS, Leon CA, Schwarting R, Ferber A. (2014 Jul). Iatrogenic lymphoproliferative disorder. Am J Hematol. 89(7):787-8.
PubMed ID:
24729413
Bilen MA, Hariri H, Leon C, Guo CC, Kuban DA, Pisters LL, Tu SM. (2014 Aug). Positive FDG-PET/CT scans of a residual seminoma after chemotherapy and radiotherapy: case report and review of the literature. Clin Genitourin Cancer. 12(4):e147-50.
PubMed ID:
24674785
Yachoui R, Leon C, Sitwala K, Kreidy M. (2017 Jun). Pulmonary MALT Lymphoma in Patients with Sjögren's Syndrome. Clin Med Res. 15(1-2):6-12.
PubMed ID:
28487450
Panich J, Irwin C, Bissonette A, Elkhidir S, Lodhi F, Folz C,...Kattamanchi S [including Lee J, Pulipati S, Fatima Z, Gopinath P, Blonsky R, Abboud Leon C.] Cohort study on immune checkpoint inhibitor-associated acute kidney injury: Incidence, risk factors, and management strategies. J Oncol Pharm Pract. 2023 April 26;10781552231171078. doi: 10.1177/10781552231171078.
PubMed ID:
37125423
Education
Work Experience
Select Publications