Dr. John Granquist, MD

CardiologyMaleAge 50

Cardiology

Dr. John Granquist, MD is a Cardiology Specialist in Hartford, CT and has over 23 years of experience in the medical field. He graduated from Tufts University School of Medicine in 2000. He is affiliated with medical facilities Hartford Hospital and Manchester Memorial Hospital. His office accepts new patients and telehealth appointments.

Dr. John Granquist, MD

Consulting Cardiologists

85 Seymour St Ste 719 Hartford, CT 06106
Accepting new patients
Telehealth services available
Telehealth services available

Accepting new patients

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Dr. Granquist's Reviews

Likelihood to recommend Dr. Granquist

5.0

Based on 100 ratings

5 Star
100%
100%
4 Star
0%
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3 Star
0%
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2 Star
0%
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1 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
One of the Best!
Excellent Heart Care.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Jan 31, 2023
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Reply
The place to go for ticker issues.
I had some heart trouble two years ago. The staff here is friendly and professional. The doctors are top notch. I have felt fully informed by them, yet never felt talked down to. I feel my care was excellent with them.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Chris Riccardino – Jan 10, 2023
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Reply
Was pleasant 1st visit Professionalisms @ its best
He made me feel very comfortable and welcome ???? he was also very On point with me! And he make sure he cover all important things with me! Would highly recommendable him to others as well as office staff was everything and they were all great
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Leslie Mcnichol – Nov 18, 2022
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Reply
Great Doctor
I look forward to my appointments with Dr. Granquist. He is well prepared for the examinations and asks relevant questions. Answers my questions with thoughtfulness and expertise. We normally end our visits with discussions about our grown kids. The examination room staff are also professional, friendly and efficient.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Peter Miniutti – Nov 16, 2022
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Reply
Very personable and professional
Dr. Granquist listens to you well and answers all questions. He explains any needed procedures and medications thoroughly. Not only that, he has a very pleasing manner if communicating.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Bill D. – Oct 09, 2022
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Reply
Very personable and calming doctor
Highly Recommend!
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Suzanne Brownell – Oct 08, 2022
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Reply
One of the best in his field great doctor.
Great doctor knowledgeable patient goes above and beyond to help you certainly one of the top cardiologists around .
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Rocco Perugini – Sep 24, 2022
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Reply
Dr Granquist met with me for the first time today. He was very kind and understanding. He took his time explaining my cardiac issues to me and made sure I understood him. He explained the next steps of treatment and assured me he would follow up with me. I felt the appointment went exceptionally well. Couldn’t ask for anything better. Thanks.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Richard Furey – Sep 16, 2022
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Reply
Great doctor and person
Dr. Granquist always takes time to listen to our concerns and makes sure we understand the course of action to take between visits. He takes copious notes about our health complaints and asks what has been agreed by the rest of our health care providers to be up to date with our treatments. He also keeps in touch with the rest of our medical team as well to be well informed of changes. He has a pleasant personality and is easy to talk to. His visits are the right amount of time, with hardly any waiting time to see him.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
2 people found this helpful
Helpful
C. Perez – Jul 17, 2022
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Reply
Dr. Granquist is great. A swers all your questions. Explains what he thinks is going on and comes up with a plan of care. Excellent
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
1 person found this helpful
Helpful
Deborah Foley – Jul 16, 2022
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Reply
6 month follow-up
6 month check up
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Jul 02, 2022
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Reply
Good
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Osman pasic – Jul 01, 2022
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Reply
Thorough, Knowledgable, and Friendly
Office staff is helpful and friendly and I have rarely had to wait past the time of my scheduled appointment. Dr. Granquist is extremely pleasant, thorough, and an excellent clinician. I feel really confident that my heart health is in good hands.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
1 person found this helpful
Helpful
Janet – Jun 11, 2022
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Reply
Outstanding Cardiologist
Absolutely the best Cardiologist and medical professional. Carefully evaluates your concerns and issues by being an attentive listener. Have the utmost trust in his ability. Always give ample time at each visit! You are in great hands with Dr. Granquist!
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Jun 10, 2022
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Reply
Superb care from superb person
Always top notch diagnosis and treatment, with a warm and considerate manner.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Apr 14, 2022
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Reply
Highly Recommended!
I have been a patient for almost 9 years. Dr. Granquist is kind, compassionate, honest & thorough. He takes his time to explain things in a way that is easy to understand. His office is efficient, never an issue with return calls, prescriptions or bills. Great office even better doctor, someone you want on your healcare team!
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
1 person found this helpful
Helpful
Apr 14, 2022
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Reply
Professional
Great listener, communicator and professional.
What went well
  • Wait times
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
  • Staff wasn't friendly
Helpful
Apr 12, 2022
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Reply
Listening ear
Doc is wonderful and keeps me on track. Thanks Doc
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Joe P. – Apr 03, 2022
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Reply
Great medical office, wonderful and warm experience from start to finish. Appreciate Dr. Granquist taking time to listen to my health concerns. Was referred over by my primary doctor and can see why. Highly recommended.
Helpful
HILDA M PEREZ – Mar 19, 2022
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Reply
Caring and compassionate!
I have known Dr. Granquist for years as he was my Mom's cardiologist. Now that I need one...he was my only choice! I never feel rushed with Dr. Granquist. He listens carefully, is very knowledgeable and takes his time explaining things. His support staff is also excellent. Just the kind of Dr you want to see!
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Cathy Ferrari – Jan 29, 2022
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About Me

Biography

Dr. John Granquist, MD is a Cardiology Specialist in Hartford, CT and has over 23 years of experience in the medical field. He graduated from Tufts University...Read more

Specialties

  • Cardiology
  • Advanced Heart Failure & Transplant Cardiology

Board Certifications

  • Advanced Heart Failure and Transplant Cardiology
  • Cardiovascular Disease

Education

Tufts New England Medical Center
Fellowship Hospital
2000
Tufts University School of Medicine
Medical School

Awards

Frequently Asked Questions

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

Find contact information here to make an appointment.

What other Cardiology Specialists practice nearby?

Click here to compare with other Cardiology Specialists.

Does Dr. John Granquist, MD accept any insurance plans?

A list of accepted insurance providers is available on the Healthgrades insurance check. It is always a good idea to verify your insurance when making an appointment.

What conditions does Dr. John Granquist, MD treat?

Dr. Granquist frequently treats the following conditions: Heart Disease, Cardiomyopathy, Hypertrophic, and Heart Murmur. See more on Healthgrades.

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

Dr. Granquist's office is located at 85 Seymour St Ste 719, Hartford, CT 06106. You can find other locations and directions on Healthgrades.

Is Dr. John Granquist, MD able to provide telehealth services?

Dr. Granquist provides telehealth services. Please contact the office to determine whether you are eligible.

Is Dr. John Granquist, MD affiliated with any hospitals?

Dr. John Granquist, MD is affiliated with Hartford Hospital and Manchester Memorial Hospital.

Is Dr. John Granquist, MD a board-certified professional?

Yes, Dr. John Granquist, MD holds board certifications in Advanced Heart Failure and Transplant Cardiology and Cardiovascular Disease.

How much experience does Dr. John Granquist, MD have?

Dr. Granquist has over 22 years of healthcare experience.

Does Dr. John Granquist, MD receive good ratings from patients?

There is a star rating of 5/5 for Dr. John Granquist, MD. Patients say that the provider listened & answered questions well and they trusted the provider's decisions. See all patient feedback on Healthgrades.

Experience and Background Checks

Experience
Background

Background Check

No malpractice claims found for Connecticut
No disciplinary actions found for the years we collect data
No board actions found for the years we collect data
Learn more about background checks

Experience Check

Check Dr. Granquist's experience treating your condition or procedure

Dr. Granquist's Top Procedures and Conditions

Treatment Frequency
Heart Disease
very high
very high

Treatment Frequency

Dr. Granquist treats Heart Disease more than 98% of his peers

Dr. Granquist treats this condition more than 98% of his peers

Cardiomyopathy, Hypertrophic
very high
very high

Treatment Frequency

Dr. Granquist treats Cardiomyopathy, Hypertrophic more than 97% of his peers

Dr. Granquist treats this condition more than 97% of his peers

Heart Murmur
very high
very high

Treatment Frequency

Dr. Granquist treats Heart Murmur more than 96% of his peers

Dr. Granquist treats this condition more than 96% of his peers

Dr. Granquist's conditions and procedures:

  • Aneurysm and Dissection of Heart
  • Angina
  • Angina and Acute Coronary Syndrome
  • Aortic Aneurysm
  • Aortic Dissection
  • Aortic Ectasia
  • Aortic Embolism and Thrombosis
  • Aortic Stenosis
  • Aortic Valve Disease
  • Aortic Valve Regurgitation
  • Arrhythmias
  • Atrial Fibrillation
  • Atrial Flutter
  • Atrial Septal Defect
  • Cardiac Arrest
  • Cardiac Imaging
  • Cardiac Myocardial Perfusion Imaging
  • Cardiac Tamponade
  • Cardiomegaly
  • Cardiomyopathy
  • Cardiomyopathy, Dilated
  • Cardiomyopathy, Hypertrophic
  • Carotid Artery Disease
  • Chest Pain
  • Chronic Pulmonary Heart Diseases (incl. Pulmonary Hypertension)
  • Congenital Aortic Valve Disorders
  • Congenital Heart Defects
  • Congenital Heart Disease
  • Congestive Heart Failure
  • Coronary Artery Disease (CAD)
  • Coronary Artery Dissection
  • Endocarditis
  • First Degree Heart Block
  • Heart Attack (Acute Myocardial Infarction)
  • Heart Disease
  • Heart Murmur
  • Heart Palpitations
  • High-Risk Hypertension
  • Hyperlipidemia
  • Hypertension
  • Hypertensive Chronic Kidney Disease
  • Hypertensive Encephalopathy
  • Hypertensive Heart and Chronic Kidney Disease
  • Hypertensive Heart Disease
  • Hypotension
  • Limb Swelling Caused by Fluid Overload
  • Long QT Syndrome
  • Mitral Valve Disease
  • Mitral Valve Prolapse
  • Mitral Valve Regurgitation
  • Mitral Valve Stenosis
  • Mobitz, Type 2, Heart Block
  • Nuclear Stress Testing
  • Patent Foramen Ovale (PFO)
  • Pericardial Disease
  • Pericarditis
  • Primary Pulmonary Hypertension
  • Pulmonary Disease
  • Pulmonary Hypertension
  • Pulmonary Venous Return Anomaly
  • Reflex Sympathetic Dystrophy
  • Second Degree Heart Block
  • Septal Defect
  • Sick Sinus Syndrome
  • Sinus Bradycardia
  • Sinus Tachycardia
  • Structural Heart Disease Evaluations and Treatment
  • Supraventricular Tachycardia
  • Syncope
  • Takayasu's Arteritis
  • Third Degree Heart Block
  • Thrombosis
  • Tricuspid Valve Disease
  • Unstable Angina
  • Vascular Disease
  • Ventricular Fibrillation
  • Ventricular Septal Defect
  • Ventricular Tachycardia (VT)
  • Wolff-Parkinson-White Pattern

Insurance Check

Search for your insurance provider

Dr. Granquist accepts

Accepted insurance can change. Please double-check when making an appointment.

(860) 522-0604

Dr. Granquist accepts the following insurance:

Aetna
Blue Cross Blue Shield
CareFirst Blue Cross Blue Shield
HealthyBlue 2.0
Cigna
Coventry Health Care
EmblemHealth
Emblem Health
First Health
First Health (Coventry Health Care)
Harvard Pilgrim Health Care
Harvard Pilgrim Health Care PPO
Humana
Medicaid
Medicare
MultiPlan
Oxford Health Plans
UnitedHealthCare
United Healthcare

Locations

Consulting Cardiologists

Consulting Cardiologists85 Seymour St Ste 719 Hartford, CT 06106
1
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2
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3
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4
  • Call
  • Fax
  • Hours
    • Mon: 9:00am - 5:00pm
    • Tue: 9:00am - 5:00pm
  • Directions