Associate Professor of Internal Medicine
[email protected]
Available to mentor
Geoffrey D Barnes, MD, MSc
Associate Professor
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.
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Cardiovascular Medicine FellowshipUniversity of Michigan, Internal Medicine/Cardiovascular Medicine, 2014
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Vascular Medicine FellowshipUniversity of Michigan, Internal Medicine/Cardiovascular Medicine, 2014
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Internal Medicine Chief ResidencyUniversity of Michigan, Internal Medicine, 2011
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Internal Medicine ResidencyUniversity of Michigan, Internal Medicine, 2010
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MSUniversity of Michigan, Ann Arbor, 2015
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MDUniversity of Michigan, 1500 E. Medical Center Drive, 2007
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BSWashington University in St. Louis, St. Louis, 2003
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Center MemberPrecision Health Initiative
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Center MemberCenter for Bioethics and Social Sciences in Medicine
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Center MemberInstitute for Healthcare Policy and Innovation
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Center MemberSamuel and Jean Frankel Cardiovascular Center
Anticoagulation therapy
Venous Thromboembolism
Implementation Science
Quality Improvement
Health systems engineering
Shared decision-making
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Han H, O'Hare C, Joyce E, Kline JA, Greineder CF, Barnes GD. J Thromb Haemost, 2024 Oct 10;Journal ArticleJTH in Clinic: management of low-risk pulmonary embolism.
DOI:10.1016/j.jtha.2024.09.019 PMID: 39395541 -
Ardeshna N, Feldeisen T, Kong X, Haymart B, Kaatz S, Ali M, Barnes GD, Froehlich JB. Vasc Med, 2024 Oct; 29 (5): 543 - 552.Journal ArticleComparing DOAC and warfarin outcomes in an obese population using the 'real-world' Michigan Anticoagulation Quality Improvement Initiative (MAQI2) registry.
DOI:10.1177/1358863X241264478 PMID: 39177515 -
Barnes GD, Lip GYH. J Am Coll Cardiol, 2024 Sep 25;Journal ArticleApplying Clinical Risk Scores in Real-World Practice: The CHA2DS2-VASc Score in Atrial Fibrillation.
DOI:10.1016/j.jacc.2024.08.017 PMID: 39365222 -
Barnes GD, Chen C, Holleman R, Errickson J, Seagull FJ, Dorsch MP, Allen AL, Spoutz P, Sussman JB. J Am Heart Assoc, 2024 Sep 17; 13 (18): e035859Journal ArticlePharmacist Use of a Population Management Dashboard for Safe Anticoagulant Prescribing: Evaluation of a Nationwide Implementation Effort.
DOI:10.1161/JAHA.124.035859 PMID: 39248259 -
Bonaca MP, Barnes GD, Bauersachs R, Bessada Y, Conte MS, Dua A, Hess CN, Serhal M, Mena-Hurtado C, Weitz JI, Beckman JA. J Am Coll Cardiol, 2024 Sep 3; 84 (10): 936 - 952.Journal ArticleAntithrombotic Strategies for Patients With Peripheral Artery Disease: JACC Scientific Statement.
DOI:10.1016/j.jacc.2024.06.027 PMID: 39197984 -
Kurlander JE, Mafi JN, Racz MJ, Barnes GD, Saini SD, Meek PD, Gastrointestinal Bleeding Working Group . Clin Gastroenterol Hepatol, 2024 Sep; 22 (9): 1937 - 1941.e4.Journal ArticlePrescribing of Proton Pump Inhibitors for Prevention of Upper Gastrointestinal Bleeding in US Outpatient Visits.
DOI:10.1016/j.cgh.2024.01.047 PMID: 38367740 -
Schaefer JK, Barnes GD. Thromb Haemost, 2024 Aug; 124 (8): 791 - 794.Journal ArticleAre the Direct Oral Anticoagulants Better for Patients with Low Time in the Therapeutic Range on Vitamin K Antagonist Therapy?
DOI:10.1055/s-0044-1787299 PMID: 38823378 -
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.Journal ArticleOptimizing antithrombotic therapy in patients with coexisting cardiovascular and gastrointestinal disease.
DOI:10.1038/s41569-024-01003-3 PMID: 38509244
Health Lab
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.
Health Lab
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.
Research News
Dr. Geoff Barne's named on the 2024 Top LGBTQ+ Doctors List
