Geoffrey Douglas Barnes, MD

Geoffrey Douglas Barnes, MD, MSc

Specialty: Cardiovascular Disease, Internal Medicine
Title: Associate Professor
4.9/5
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Geoffrey Douglas Barnes, MD, MSc
Cardiovascular Disease
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  • About

    Geoff Barnes is a cardiologist and vascular medicine specialist at the University of Michigan Health System. He completed his undergraduate degree in biomedical engineering at Washington University in St. Louis (2003) followed by medical school at the University of Michigan (2007). He then completed an internal medicine residency (2010), chief residency in internal medicine (2011), cardiology fellowship (2014) and vascular medicine fellowship (2014) at the University of Michigan. His areas of research interest include anticoagulation, venous thromboembolism, quality improvement and shared decision making. He currently co-directs the Michigan Anticoagulation Quality Improvement Initiative (MAQI2) a six-centered BCBSM-sponsored anticoagulation quality improvement collaborative and registry. He is leading an NIH-sponsored study to improve the coordination and care of patients on chronic anticoagulants around the time of surgical procedures.

    Areas of Practice

    Dr. Barnes’ clinical interest includes treatment of vascular disorders (including venous thromboembolism, peripheral artery disease and Raynaud’s disorders), anticoagulation, general cardiac care, fibromuscular dysplasia (FMD), genetic arteriopathies (Marfan syndrome, Loeys-Dietz syndrome (LDS), vascular Ehlers-Danlos syndrome (Type IV)), and aortic aneurysm

    Locations

    • Cardiology Clinic | Frankel Cardiovascular Center 1425 E Ann St
      Floor 3 Reception C
      Ann Arbor, MI 48109-5856
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    • Venous Management Clinic | Frankel Cardiovascular Center 1425 E Ann St
      Floor 3 Reception B
      Ann Arbor, MI 48109-5856
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    Insurance Accepted

    University of Michigan Health participates with most health insurance plans.

    See our insurance details

    Education & Training

    Medical School or Training

    University of Michigan Medical School, 2007

    Residency

    University of Michigan Health System, Internal Medicine, 2011

    Fellowships

    University of Michigan Health System, Internal Medicine Cardiology, 2014

    Board Certifications

    Cardiovascular Disease

    Links

    Institute for Healthcare Policy & Innovation

    Center for History, Humanities, Arts, Social Sciences & Ethics in Medicine CHHA…

    Patient Ratings & Comments

    Visit our Physician Ratings & Comments page to learn more about how patient ratings are collected, calculated, and updated to help you make an informed decision when choosing the right physician for your care.

    Patient Ratings

    100 Patient Ratings

    Patient Comments

    June 19, 2025 - "Dr Barnes really took the time and to show me my CT and explain it all to me, answered all my questions and never made me feel rushed or unimportant. He was great!!"

    November 14, 2024 - "Dr Barnes is an all-around asset to this hospital. [...]"

    Featured News & Stories

    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.