Geoffrey D Barnes, MD, MSc

 Geoff Barnes headshot
Associate Professor of Internal Medicine
Associate Chair, Department of Internal Medicine
Medical School and Medical Director, MPrOVe
Email:
[email protected]
Available to mentor
Geoffrey D Barnes, MD, MSc
Geoff Barnes headshot
Associate Professor
  • About
  • Links
  • Qualifications
  • Center Memberships
  • Research Overview
  • Recent Publications

  • Manage Your Profile

    • 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
    • twitter

    Qualifications
    • Cardiovascular Medicine Fellowship
      University of Michigan, Internal Medicine/Cardiovascular Medicine, Ann Arbor, United States
      2011 - 2014
      Postdoctoral Fellowship
    • Vascular Medicine Fellowship
      University of Michigan, Internal Medicine/Cardiovascular Medicine, Ann Arbor, United States
      2013 - 2014
      Postdoctoral Fellowship
    • Internal Medicine Chief Residency
      University of Michigan, Internal Medicine, Ann Arbor, United States
      2010 - 2011
      Chief Resident
    • Internal Medicine Residency
      University of Michigan, Internal Medicine, Ann Arbor, United States
      2007 - 2010
      Residency
    • MS
      University of Michigan, Ann Arbor, Michigan, United States
      2014 - 2015
    • MD
      University of Michigan, 1500 E. Medical Center Drive, Ann Arbor, MI, 48109, United States
      2003 - 2007
    • BS
      Washington University in St. Louis, St. Louis, MO, United States
      1999 - 2003

    Center Memberships
    • Center Member
      AI and Digital Health Innovation
    • Center Member
      Institute for Healthcare Policy and Innovation
    • Center Member
      Center for History, Humanities, Arts, Social Sciences and Ethics in Medicine
    • 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
      Interhospital Variation in 180-Day Infections and Associated Medicare Spending after Cardiac Surgery.
      Hider A, Nasser R, Chang C-H, Zhou S, Braun TM, Hawkins RB, Barnes GD, Thompson MP, Guetterman TC, Funk RJ, Pagani FD, Likosky DS. J Thorac Cardiovasc Surg, 2026 Aug 3; DOI:10.1016/j.jtcvs.2026.07.017
      PMID: 42546916
    • Journal Article
      Clinical decision support (CDS) tool evaluation: Correction of direct oral anticoagulant (DOAC) dosing errors by clinical pharmacists and physicians
      Saraswat A, Smith SN, Dorsch MP, Fabbri M, Seagull FJ, Choi SY, Lanham M, Barnes GD. Research and Practice in Thrombosis and Haemostasis, 2026 Aug 8; 106900 DOI:10.1016/j.rpth.2026.106900
    • Journal Article
      Key points from the 2026 multisocietal acute pulmonary embolism guidelines: Perspectives of some SVM members on the writing committee.
      Porres-Aguilar M, Piazza G, Barnes GD, Mukherjee D, Secemsky EA, Creager MA. Vasc Med, 2026 Aug; 31 (4): 617 - 620. DOI:10.1177/1358863X261469140
      PMID: 42591043
    • Journal Article
      Erratum: Correction to: 2026 AHA/ACC/ACCP/ACEP/CHEST/SCAI/ SHM/SIR/SVM/SVN Guideline for the Evaluation and Management of Acute Pulmonary Embolism in Adults: A Report of the American College of Cardiology/American Heart Association Joint Committee on Clinical Practice Guidelines (Circulation (2026) 153 12 DOI: 10.1161/CIR.0000000000001415.)
      Creager MA, Barnes GD, Giri J, Mukherjee D, Jones WS, Burnett AE, Carman T, Casanegra AI, Castellucci LA, Clark SM, Cushman M, de Wit K, Eaves JM, Fang MC, Goldberg JB, Henkin S, Johnston-Cox H, Kadavath S, Kadian-Dodov D, Keeling WB, Klein AJP, Li J, McDaniel MC, Moores LK, Piazza G, Prenger KS, Pugliese SC, Ranade M, Rosovsky RP, Russo F, Secemsky EA, Sista AK, Tefera L, Weinberg I, Westafer LM, Young MN. Circulation, 2026 Jul 14; 154 (2): e24 DOI:10.1161/CIR.0000000000001462
      PMID: 42441758
    • Journal Article
      Comparison of Monthly Bleeding Rates After DOAC Initiation for Venous Thromboembolism and Atrial Fibrillation
      Awuah D, Zestos S, Errickson J, Kong X, Ali M, Guiliano C, Haymart B, Kaatz S, DeCamillo D, Ryan N, Sood S, Froehlich J, Barnes G, Schaefer J. Research and Practice in Thrombosis and Haemostasis, 2026 Jul 3;
    • Journal Article
      Implementation evaluation of an inpatient digital dashboard for direct oral anticoagulant surveillance.
      Hong H, Hanigan Lewis S, Triller DM, Dane KE, Jones M, Whyte C, Lanham MSM, Allen AL, Kaatz S, Barnes GD. Am J Health Syst Pharm, 2026 Jun 19; DOI:10.1093/ajhp/zxag182
      PMID: 42320525
    • Journal Article
      Introducing the 2026 Focused Issue on Venous Disease: What excites us most about the future of this field.
      Gornik HL, Kanthi Y, McBane RD, Weinberg I, Barnes GD, Piazza G, Vedantham S, Kolluri R. Vasc Med, 2026 Jun; 31 (3): 260 - 263. DOI:10.1177/1358863X261426953
      PMID: 42267762
    • Journal Article
      Anticoagulation Services as a Model for Cardiovascular Medication Stewardship.
      Barnes GD, Lech T, Allen AL. Circulation, 2026 May 26; 153 (21): 1603 - 1605. DOI:10.1161/CIRCULATIONAHA.126.078166
      PMID: 42189956

    Featured News & Stories

         pill bottle spilling yellow blue
    Health Lab

    Nearly 1 in 6 older adults take aspirin despite no history of heart disease

    Around 1 in 6 older adults take aspirin as their primary method of preventing cardiovascular disease, despite stricter guidelines. For some patients, the benefit of aspirin may not outweigh the risk of bleeding.
         prescription pad drawn
    Health Lab

    Reducing dose of popular blood thinners may limit risk of future bleeding

    For people taking the popular blood thinners rivaroxaban (brand name Xarelto) and apixaban (brand name Eliquis), after having a blood clot, a reduced dose may limit the future risk of bleeding as well as hospital visits, a Michigan Medicine-led study suggests.
         prescription pad blue yellow sketch
    Health Lab

    Risk of clots, stroke from incorrect blood thinner dosing reduced using online dashboard

    Doctors and pharmacists treating people with blood thinners can now reduce the rate of inappropriate dosing — as well as blood clots and strokes that can result from it — using an electronic patient management system.
         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.