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Dr. John Granquist, MD

Cardiology*MaleAge 51

Cardiology*

Dr. John Granquist, MD is a cardiology specialist in Glastonbury, CT and has over 23 years of experience in the medical field. Dr. Granquist has extensive experience in Adult Congenital Heart Conditions. He graduated from Tufts University School of Medicine in 2000. He is affiliated with medical facilities Hartford Hospital and Manchester Memorial Hospital. He is accepting new patients and telehealth appointments.

Dr. John Granquist, MD

Consulting Cardiologists

305 Western Blvd Ste 100STE 100 Glastonbury, CT 06033
Telehealth services available
Telehealth services available

Accepting new patients

Compare with other Cardiology Specialists

Compare Dr. Granquist with our nearby Cardiology Specialists at Hartford Healthcare.

Make an appointment at Hartford Healthcare today at (860) 294-9155.

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These providers are on the medical staff of Hartford Healthcare.

Dr. Granquist is a Healthgrades Choice provider in Cardiology

The Healthgrades Choice designation helps you understand the most important factors to consider when choosing a healthcare professional. This designation is earned based on four set standards.
Read our methodology

  • Above average experience
  • Good hospital quality
  • Good patient ratings
  • No healthcare sanctions

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*The information displayed here is sourced from independent information providers, such as state board websites, as of November 2023, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.

Dr. Granquist's Reviews

Likelihood to recommend Dr. Granquist

5.0

123 ratings, 98 with a written review
5 Star
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3 Star
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What went well
No reviews yet
What could be improved
No reviews yet

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RecentHighestLowestMost Helpful
Reply
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Tom Gilmartin – Apr 05, 2024
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Reply
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 person found this helpful
Helpful
Mar 08, 2024
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Reply
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 person found this helpful
Helpful
Coulombe – Feb 20, 2024
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Reply
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 person found this helpful
Helpful
Pat – Feb 14, 2024
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Reply
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 person found this helpful
Helpful
Jan 22, 2024
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Reply
What went well
  • I felt respected
  • Listened & answered questions
  • Explained conditions well
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 person found this helpful
Helpful
Jan 07, 2024
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Reply
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Jan 04, 2024
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Reply
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Jenny Mantel – Jan 04, 2024
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Reply
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Christine Miarecki – Dec 01, 2023
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Reply
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
ErnieP – Nov 30, 2023
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Reply
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Maureen Brennan – Nov 08, 2023
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Reply
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Lynne Karson – Oct 17, 2023
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Reply
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Paul Liu – Oct 14, 2023
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Reply
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Oct 07, 2023
×Post a ResponseAre you Dr. John Granquist, MD?
Reply
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Mary F. – Sep 23, 2023
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Reply
What went well
No results
What could be improved
No results
1 person found this helpful
Helpful
Aug 12, 2023
×Post a ResponseAre you Dr. John Granquist, MD?
Reply
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Robert – Jul 20, 2023
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Reply
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Jul 17, 2023
×Post a ResponseAre you Dr. John Granquist, MD?
Reply
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Linette – Jul 17, 2023
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Reply
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Rita Luongo – Jul 14, 2023
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Leave a review

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About Me

Biography

Dr. John Granquist, MD is a Cardiology Specialist in Glastonbury, CT and has over 23 years of experience in the medical field. Dr. Granquist has extensive...Read more

Specialties*

  • Cardiology

*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

Board Certifications

American Board of Medical Specialties®
American Board of Internal Medicine®
Advanced Heart Failure and Transplant Cardiology
Cardiovascular Disease
Internal Medicine

Tufts New England Medical Center

Fellowship Hospital

Tufts University School of Medicine

Medical School, 2000

Common Questions and Answers

    Please call the office to learn more. (860) 522-0604

    What is the best way to schedule an appointment with Dr. John Granquist, MD?

    New patients may call (860) 294-9155 to make an appointment.

    What other Cardiology Specialists practice nearby?

    Compare with other Cardiology Specialists.

    Can I use my insurance at Dr. John Granquist, MD?

    Dr. John Granquist, MD accepts various insurance plans. You can easily check if your insurance provider is accepted by using the Healthgrades insurance check. We recommend verifying your insurance coverage before scheduling an appointment to ensure a seamless experience.

    What are Dr. John Granquist, MD's top areas of expertise?

    Dr. John Granquist, MD specializes in Adult Congenital Heart Conditions. See more on Healthgrades.

    What is Dr. John Granquist, MD's office address?

    Dr. Granquist's office is located at 305 Western Blvd Ste 100STE 100, Glastonbury, CT 06033. You can find other locations and directions on Healthgrades.

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    Locations

    Consulting Cardiologists

    Consulting Cardiologists305 Western Blvd Ste 100STE 100 Glastonbury, CT 06033
    1
    • Call
    • Fax
    • Hours
      • Mon: 9:00am - 5:00pm
      • Tue: 9:00am - 5:00pm
      • Wed: 9:00am - 5:00pm
      • Thu: 9:00am - 5:00pm
      • Fri: 9:00am - 5:00pm
      • Sat: closed
      • Sun: closed
    • Directions
    Consulting Cardiologists PC85 Seymour St Ste 719 Hartford, CT 06106
    2
    • Call
    • Fax
    • Hours
      • Mon: 9:00am - 5:00pm
      • Tue: 9:00am - 5:00pm
      • Wed: 9:00am - 5:00pm
      • Thu: 9:00am - 5:00pm
      • Fri: 9:00am - 5:00pm
      • Sat: closed
      • Sun: closed
    • Directions
    Consulting Cardiologists74 Mack St Windsor, CT 06095
    3
    • Call
    • Fax
    • Hours
      • Mon: 9:00am - 5:00pm
      • Tue: 9:00am - 5:00pm
      • Wed: closed
      • Thu: closed
      • Fri: closed
      • Sat: closed
      • Sun: closed
    • Directions

    Consulting Cardiologists

    Consulting Cardiologists, PC433 S Main St Ste 109 West Hartford, CT 06110
    4
    • Call
    • Fax
    • Hours
      • Mon: 9:00am - 5:00pm
      • Tue: 9:00am - 5:00pm
      • Wed: 9:00am - 5:00pm
      • Thu: 9:00am - 5:00pm
      • Fri: 9:00am - 5:00pm
      • Sat: closed
      • Sun: closed
    • Directions

    Consulting Cardiologists

    Consulting Cardiologists1060 Day Hill Rd Windsor, CT 06095
    5
    • Call
    • Fax
    • Hours
      • Mon: closed
      • Tue: 9:00am - 5:00pm
      • Wed: closed
      • Thu: closed
      • Fri: closed
      • Sat: closed
      • Sun: closed
    • Directions