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David N. Brennan, M.D.


  1. Rochester, Minnesota



David Brennan, M.D., is a primary care internal medicine physician. His clinical focus includes:

  • Management of chronic diseases such as hypertension, diabetes mellitus and heart failure
  • Coordinating multidisciplinary care and facilitating healthcare transitions
  • Hands-on procedural service including musculoskeletal injections and skin procedures
  • Use of bedside ultrasound in diagnosis and intervention
  • Putting the needs of the patient first every time

In addition to his clinical activities, Dr. Brennan is an active leader in resident education, in both inpatient and outpatient medicine.

  1. 2018
    ResidentInternal Medicine, Programs in Rochester, Mayo School of Graduate Medical Education, Mayo Clinic College of Medicine
  2. 2015
    Medical School - M.D.University of South Dakota Sanford School of Medicine


  1. 2018
    Internal MedicineAmerican Board of Internal Medicine

Awards and honors

  1. 2015
    Leonard Tow Humanism in Medicine AwardThe Arnold Gold Foundation
  2. 2015
    Loren H. Amundson AwardAlpha Omega Alpha, South Dakota Chapter

Professional memberships

  1. 2021 - 2022
    MemberMayo Clinic Point-of-Care Ultrasound Workgroup
  2. 2015 - present
    MemberAmerican College of Physicians
  3. 2015 - present
    MemberZumbro Valley Medical Society
  4. 2014 - present
    MemberAlpha Omega Alpha
  5. 2014 - present
    MemberGold Humanism Honor Society