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Dr. Marsden Blois, MD

Dr. Marsden Blois, MD

Age 55 Cardiology M
(11) 11 reviews

Telehealth available


Dr. Marsden Blois, MD is a cardiology specialist in Boulder, CO. Dr. Blois completed a residency at University Of Colorado Health Science. He currently practices at Boulder Heart, Boulder Colorado and is affiliated with Ascension Seton Medical Center Austin. He accepts multiple insurance plans. Dr. Blois is board certified in Cardiovascular Disease.


  • University Of Colorado-Health Science Center, Fellowship Hospital — 2000
  • University Of Colorado Health Science, Residency Hospital — 1997
  • University Of Colorado-Health Science Center, Internship Hospital — 1996
  • Baylor University, Medical School — 1989
  • University of California At Los Angeles, Undergraduate School — 1989

Insurance Accepted

  • Accepts most major Health Plans. Please contact our office for details.
  • Aetna
  • Anthem
  • Anthem Blue Cross Blue Shield
  • Blue Cross Blue Shield
  • CareFirst Blue Cross Blue Shield
  • Cigna
  • First Health (Coventry Health Care)
  • MultiPlan

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  1. Boulder Heart, Boulder Colorado

    1. 1
      Boulder Heart
      4743 Arapahoe Ave Ste 201, Boulder, CO 80303 Existing Patients: (303) 442-2395
  1. Practice

    1. 2
      Boulder Community Health
      4747 Arapahoe Ave, Boulder, CO 80303 Existing Patients: (303) 415-7400

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Frequently Asked Questions

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Dr. Blois frequently treats Adult Congenital Heart Conditions.  

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Hospital Affiliations

  • Ascension Seton Medical Center Austin
  • Ascension Seton Northwest
  • Heart Hospital of Austin
  • St. David's Medical Center