Summary

Dr. John Granquist treats cardiac arrhythmia, ventricular arrhythmia, and arrhythmias in children, and performs electrocardiograms and cardiac rehabilitation. He practices cardiology and internal medicine and is affiliated with Hartford Hospital, Saint Francis Hospital and Medical Center, New Britain General Campus, and Midstate Medical Center. He speaks Russian and Spanish and sees patients at locations across Connecticut, including Glastonbury, Avon, West Hartford, Hartford, and Manchester. He earned his medical degree from Tufts University School of Medicine. Patients on Vitals rate Dr. Granquist 4.4 out of 5.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.4
  • 26 years of experience
  • speaks Russian, Spanish
  • Tufts University School Of Medicine
  • 3 written reviews
  • 2 specialties
  • 20 areas of expertise
  • 5 hospital affiliations
  • 8 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. John Dickson Granquist has 8 locations

Consulting Cardiologists Pc

305 Western Blvd Ste 100Glastonbury, CT 06033
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

Avon Wellness Center

100 Simsbury RdAvon, CT 06001
Mon6:30 am - 8:00 pm
Tue6:30 am - 8:00 pm
Wed6:30 am - 8:00 pm
Thu6:30 am - 8:00 pm
Fri6:30 am - 8:00 pm
SatClosed
SunClosed

Consulting Cardiologists Pc

433 S Main St Ste 109West Hartford, CT 06110
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

Hartford Hospital

80 Seymour StHartford, CT 06102

Consulting Cardiologists Pc

305 Western BlvdGlastonbury, CT 06033
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

Cardiology Pc Of Hartford

376 Tolland Tpke Ste 101Manchester, CT 06042
Mon8:30 am - 4:30 pm
Tue8:30 am - 4:30 pm
Wed8:30 am - 4:30 pm
Thu8:30 am - 4:30 pm
Fri8:30 am - 4:30 pm
SatClosed
SunClosed

Hartford Hospital

80 Seymour StHartford, CT 06106

Center For Advanced Heart Failure And Pulmonary Vascular Disease

85 Seymour StHartford, CT 06106
Mon8:00 am - 4:00 pm
Tue8:00 am - 4:00 pm
Wed8:00 am - 4:00 pm
Thu8:00 am - 4:00 pm
Fri8:00 am - 4:00 pm
SatClosed
SunClosed

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Dr. John Dickson Granquist, MDJessica Angela Nichole FettDr. Eytan M Rubinstien, MDDr. Anita Louise Bourque, MD
CardiologyNurse PractitionerInfectious DiseaseDiagnostic Radiology
Accepts New Patients Accepts New Patients
4.4 
0 
0 
0 
26 Years of Experience 51 Years of Experience 42 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks Russian, Spanish Speaks English, Spanish Speaks English Speaks English
Glastonbury , CTHartford , CTHartford , CTNorwich , CT
Med School: Tufts University School Of Medicine Med School: Hadassah Medical School Med School: New York University School Of Medicine
Current Profile
View Profile View Profile View Profile

Insurance Plans Accepted by Dr. John Dickson Granquist

  • Accepts Medicare
  • Accepts Medicaid

Medical Specialties

Dr. John Dickson Granquist has the following 2 specialties

Specialty Expertise

Dr. John Dickson Granquist has the following 20 areas of expertise

  • Acute Coronary Syndrome (ACS)
  • Arrhythmia
  • Atherosclerosis
  • Atrial Fibrillation
  • Blood Clot
  • Cardiovascular Disease
  • Echocardiography
  • Fainting (Syncope)
  • Heart Attack
  • Heart Block
  • Heart Diseases
  • Heart Failure
  • High Blood Pressure (Hypertension)
  • High Cholesterol
  • High Cholesterol (Hypercholesterolemia)
  • Hypertension
  • Internal Medicine
  • Nuclear Medicine
  • Stroke
  • Unstable Angina

Certifications, License, & Education

26 Years Experience

Dr. John Dickson Granquist holds an active medical license in the state of Connecticut.

Medical License

Medical Doctor with an active medical license in the state of Connecticut that expires in 2026.

Education & Training

Medical School

Graduated from Tufts University School Of Medicine in 2000.

NPI Number

Dr. Granquist's NPI number is 1699821892.

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Frequently Asked Questions

How can I make an appointment with Dr. John Granquist?
You can find contact information for Dr. John Granquist here on Vitals.
Is Dr. John Granquist accepting new patients?
Dr. John Granquist is accepting new patients on Vitals. View Dr. John Granquist's profile on Vitals to make an appointment.
Does Dr. John Granquist accept my insurance?
You can see the insurance plans that Dr. John Granquist accepts on their Vitals profile.
What languages does Dr. John Granquist speak?
Dr. John Granquist speaks Russian and Spanish.
Which hospitals is Dr. John Granquist affiliated with?
Dr. John Granquist is affiliated with Hartford Hospital, Saint Francis Hospital And Medical Center, New Britain General Campus, Midstate Medical Center, and Hartford Hospital.

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