Marcus Geer
Assistant Professor of Internal Medicine
Department of Internal Medicine
1500 E. Medical center Dr. SPC 5271
Ann Arbor, MI 48109
[email protected]

Available to mentor
Marcus Geer
Clinical Assistant Professor
  • Qualifications
  • Recent Publications
    • Qualifications
    • Elsa U. Pardee Hematology Oncology Fellow
      University of Michigan–Ann Arbor, Ann Arbor, 2023
    • Chief Resident
      University of Michigan–Ann Arbor, Ann Arbor, 2020
    • Resident
      University of Michigan–Ann Arbor, Ann Arbor, 2019
    • MD
      University of Toledo College of Medicine and Life Sciences, Toledo, 2016
    • BS
      Denison University, Granville, 2010
    Recent Publications See All Publications
    • Journal Article
      Longitudinal plasma proteomics in CAR T-cell therapy patients implicates neutrophils and NETosis in the genesis of CRS.
      Flora C, Olesnavich M, Zuo Y, Sandford E, Madhukar R, Rozwadowski M, Sugur K, Ly A, Canbaz AA, Shedeck A, Li G, Geer MJ, Yanik GA, Ghosh M, Frame DG, Bonifant CL, Jain T, Knight JS, Choi SW, Tewari M. Blood Adv, 2024 Mar 26; 8 (6): 1422 - 1426. DOI:10.1182/bloodadvances.2023010728
      PMID: 38266157
    • Journal Article
      Efficacy of Siltuximab for Chimeric Antigen Receptor T-Cell Therapy Toxicities – a Multicenter Retrospective Analysis
      Bajwa A, Zhao Q, Geer MJ, Mian A, Lin C, Frame D, Westholder J, Tossey J, Ghosh M, Galal A, Ahmed N, Maakaron JE, Denlinger N, de Lima M, Epperla N, Caimi P, Voorhees T. Transplantation and Cellular Therapy, 2024 Feb; 30 (2): s201 - s202. DOI:10.1016/j.jtct.2023.12.261
    • Journal Article
      Rational Modification of Human Gut Microbiome and Metabolites By Dietary Resistant Starch in Allogeneic Hematopoietic Stem Cell Transplantation to Mitigate Acute Graft Versus Host Disease: A Phase II Study Clinical Update
      Riwes MM, Braun T, Magenau J, Geer MJ, Ghosh M, Pawarode A, Anand S, Maciejewski J, King D, Choi SW, Yanik GA, Tewari M, Reddy P. Transplantation and Cellular Therapy, 2024 Feb; 30 (2): s28 - s29. DOI:10.1016/j.jtct.2023.12.057
    • Proceeding / Abstract / Poster
      Efficacy of Siltuximab for Chimeric Antigen Receptor T-Cell Therapy Toxicities - a Multicenter Retrospective Analysis
      Bajwa AK, Zhao Q, Geer MJ, Mian A, Lin C, Frame D, Westholder J, Tossey J, Ghosh M, Galal A, Ahmed N, Maakaron JE, Denlinger N, de Lima M, Epperla N, Caimi PF, Voorhees T. Blood, 2023 Nov 28; 142 (Supplement 1): 4502 DOI:10.1182/blood-2023-179620
    • Chapter
      Complications of Hematologic Malignancies/Hematologic Emergencies and Supportive Care
      Geer M, Reynolds S, Pianko M. 2023 Nov 23; Hematology Board Review,
    • Presentation
      BMT Certificate for Heme/Onc Fellows
      Riwes M, Geer M. 2023 Oct 27;
    • Additional Scholarship
      Bone Marrow Transplant and Cellular Therapy Certificate/ Developing a new curriculum to provide additional structured training during hematology oncology fellowship for fellows planning to pursue a career in BMT/cellular therapy.
      Riwes M, Geer M. 2023 Oct 27;
    • Journal Article
      Feasibility of a dietary intervention to modify gut microbial metabolism in patients with hematopoietic stem cell transplantation.
      Riwes MM, Golob JL, Magenau J, Shan M, Dick G, Braun T, Schmidt TM, Pawarode A, Anand S, Ghosh M, Maciejewski J, King D, Choi S, Yanik G, Geer M, Hillman E, Lyssiotis CA, Tewari M, Reddy P. Nat Med, 2023 Nov; 29 (11): 2805 - 2813. DOI:10.1038/s41591-023-02587-y
      PMID: 37857710