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Dr. John Granquist, MD

Dr. John Granquist, MD

Age 49 Cardiology M
(78) 78 reviews

Telehealth available

Accepting New Patients


Dr. John Granquist, MD is a cardiology specialist in Hartford, CT. He currently practices at Consulting Cardiologists and is affiliated with Hartford Hospital. He accepts multiple insurance plans. Dr. Granquist is board certified in Advanced Heart Failure and Transplant Cardiology.

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Dr. John Granquist, MD
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  • Tufts New England Medical Center, Fellowship Hospital
  • Tufts University School Of Medicine, Medical School — 2000

Insurance Accepted

  • Aetna
  • Anthem
  • Blue Cross Blue Shield
  • CareFirst Blue Cross Blue Shield
  • Cigna
  • EmblemHealth
  • First Health (Coventry Health Care)
  • Harvard Pilgrim Health Care
  • Humana
  • Medicaid
  • MultiPlan
  • Oxford Health Plans
  • UnitedHealthCare

* Please verify this information when scheduling an appointment.


  1. Consulting Cardiologists

    1. 1
      Consulting Cardiologists
      85 Seymour St Ste 719, Hartford, CT 06106 Existing Patients: (860) 522-0604
    2. 2
      Consulting Cardiologists
      1060 Day Hill Rd # Ct, Windsor, CT 06095 Existing Patients: (860) 522-0604
    3. 3
      Consulting Cardiologists
      74 Mack St, Windsor, CT 06095 Existing Patients: (860) 522-0604

Frequently Asked Questions

Dr. Granquist frequently treats Electrocardiogram (EKG), Heart Disease, and Cardiomyopathy, Hypertrophic.  

Find contact information here to make an appointment.

Hospital Affiliations

  • Hartford Hospital
  • Manchester Memorial Hospital
  • Middlesex Hospital