Geoffrey D Barnes, MD, MSc
Associate Professor of Internal Medicine
[email protected]

Available to mentor

Geoffrey D Barnes, MD, MSc
Associate Professor
  • About
  • Links
  • Qualifications
  • Center Memberships
  • Research Overview
  • Recent Publications
  • About

    Dr. Barnes is a cardiologist and vascular medicine specialist. His research focuses on developing, implementing, and evaluating antithrombotic stewardship efforts to improve the care of patients with thrombotic conditions and/or those who use anticoagulant medications. He serves as co-director for the Michigan Anticoagulation Quality Improvement Initiative (MAQI2) and as co-director for the Michigan Program on Value Enhancement (MPrOVE). His research is funded by the NIH, AHRQ, and Blue Cross-Blue Shield of Michigan. He serves in leadership roles with several national and International organizations, including the Anticoagulation Forum, American College of Cardiology, and International Society on Thrombosis and Hemostasis. He also serves as the program director for the University of Michigan Vascular Medicine fellowship training program.

    Links
    Qualifications
    • Cardiovascular Medicine Fellowship
      University of Michigan, Internal Medicine/Cardiovascular Medicine, 2014
    • Vascular Medicine Fellowship
      University of Michigan, Internal Medicine/Cardiovascular Medicine, 2014
    • Internal Medicine Chief Residency
      University of Michigan, Internal Medicine, 2011
    • Internal Medicine Residency
      University of Michigan, Internal Medicine, 2010
    • MS
      University of Michigan, Ann Arbor, 2015
    • MD
      University of Michigan, 1500 E. Medical Center Drive, 2007
    • BS
      Washington University in St. Louis, St. Louis, 2003
    Center Memberships
    • Center Member
      Precision Health Initiative
    • Center Member
      Center for Bioethics and Social Sciences in Medicine
    • Center Member
      Institute for Healthcare Policy and Innovation
    • Center Member
      Samuel and Jean Frankel Cardiovascular Center
    Research Overview

    Anticoagulation therapy
    Venous Thromboembolism
    Implementation Science
    Quality Improvement
    Health systems engineering
    Shared decision-making

    Recent Publications See All Publications
    • Journal Article
      Prescribing of Proton Pump Inhibitors for Prevention of Upper Gastrointestinal Bleeding in US Outpatient Visits.
      Kurlander JE, Mafi JN, Racz MJ, Barnes GD, Saini SD, Meek PD, Gastrointestinal Bleeding Working Group . Clin Gastroenterol Hepatol, 2024 Feb 15; DOI:10.1016/j.cgh.2024.01.047
      PMID: 38367740
    • Journal Article
      Are the Direct Oral Anticoagulants Better for Patients with Low Time in the Therapeutic Range on Vitamin K Antagonist Therapy?
      Schaefer JK, Barnes GD. Thromb Haemost, 2024 Aug; 124 (8): 791 - 794. DOI:10.1055/s-0044-1787299
      PMID: 38823378
    • Journal Article
      Optimizing antithrombotic therapy in patients with coexisting cardiovascular and gastrointestinal disease.
      Talasaz AH, Sadeghipour P, Ortega-Paz L, Kakavand H, Aghakouchakzadeh M, Beavers C, Fanikos J, Eikelboom JW, Siegal DM, Monreal M, Jimenez D, Vaduganathan M, Castellucci LA, Cuker A, Barnes GD, Connors JM, Secemsky EA, Van Tassell BW, De Caterina R, Kurlander JE, Aminian A, Piazza G, Goldhaber SZ, Moores L, Middeldorp S, Kirtane AJ, Elkind MSV, Angiolillo DJ, Konstantinides S, Lip GYH, Stone GW, Cushman M, Krumholz HM, Mehran R, Bhatt DL, Bikdeli B. Nat Rev Cardiol, 2024 Aug; 21 (8): 574 - 592. DOI:10.1038/s41569-024-01003-3
      PMID: 38509244
    • Journal Article
      Timing of Off-Label Dosing of Direct Oral Anticoagulants in Three Large Health Systems.
      Herron GC, DeCamillo D, Kong X, Haymart B, Kaatz S, Ellsworth S, Ali MA, Giuliano C, Froehlich JB, Barnes GD. Thromb Haemost, 2024 Jul 30; DOI:10.1055/a-2365-8681
      PMID: 39009007
    • Journal Article
      Erratum to ‘Illustrated State-of-the-Art Capsules of the ISTH 2024 Congress’ [Research and Practice in Thrombosis and Haemostasis Volume 8, Issue 4, May 2024, 102432](S2475037924001213)(10.1016/j.rpth.2024.102432)
      Ward C, Curry N, El-Ekiaby M, Jurk K, Versteeg HH, Keragala C, Burstyn-Cohen T, Antoniak S, Suzuki Y, Baker RI, Christophe O, Revel-Vilk S, Hart A, Deppermann C, Tran H, Pozzi N, Kahr WHA, Grover SP, Wenzel P, Brown AC, Oury C, Shea SM, Fredenburgh J, Passam FH, Winearls J, Moore HB, Tole S, Merriman E, Barnes GD, Leonardo Liu Z, Sholzberg M, Rivera J, Marín-Quilez A. Research and Practice in Thrombosis and Haemostasis, 2024 Jul 1; 8 (5): DOI:10.1016/j.rpth.2024.102498
    • Journal Article
      Current Gaps in the Provision of Safe and Effective Anticoagulation in Atrial Fibrillation and the Potential for Factor XI-Directed Therapeutics.
      Goodman SG, Roy D, Pollack CV, Leblanc K, Kwaku KF, Barnes GD, Bonaca MP, True Hills M, Campello E, Fanikos J, Connors JM, Weitz JI. Crit Pathw Cardiol, 2024 Jun 1; 23 (2): 47 - 57. DOI:10.1097/HPC.0000000000000351
      PMID: 38381695
    • Journal Article
      ENDS, Cigarettes, and Respiratory Illness: Longitudinal Associations Among U.S. Youth.
      Mukerjee R, Hirschtick JL, Arciniega LZ, Xie Y, Barnes GD, Arenberg DA, Levy DT, Meza R, Fleischer NL, Cook SF. Am J Prev Med, 2024 May; 66 (5): 789 - 796. DOI:10.1016/j.amepre.2023.12.005
      PMID: 38081374
    • Journal Article
      Prevalence of Guideline-Discordant Aspirin Use and Associated Adverse Events in Patients on Warfarin for Mechanical Valve Replacement.
      Haymart B, Kong X, Ali M, Schaefer JK, Froehlich JB, Ryan N, Stallings B, Barnes GD, Kaatz S. Am J Med, 2024 May; 137 (5): 449 - 453. DOI:10.1016/j.amjmed.2024.01.015
      PMID: 38280559
    Featured News & Stories person at counter with medicine brown bottle and pills
    Health Lab
    Most blood thinner dosing problems happen after initial prescription
    More than two-thirds of those people take a type of blood thinner called a direct oral anticoagulant. These DOACs, such as rivaroxaban (brand name Xarelto) and apixaban (brand name Eliquis), are under- or over-prescribed in up to one in eight patents. These prescribing issues can have life-threatening consequences, and they most often occur after a provider writes the initial prescription, according to a study led by Michigan Medicine.
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