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

Compare with Similar Doctors

Dr. John Dickson Granquist, MD
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Dr. John Dickson Granquist, MDJennifer FerreiraHira KhanGraham Dixon
CardiologyHospital MedicineHospital MedicineInfectious Disease
Accepts New Patients
4.4 
0 
0 
0 
26 Years of Experience 6 Years of Experience 5 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks Russian, Spanish
Glastonbury , CTFarmington , CTDerby , CTFarmington , CT
Med School: Tufts University School Of Medicine Med School: Medical University Of The Americas (Nevis) Med School: The Brody School Of Medicine At East Carolina University
Current Profile
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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

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.
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.
Does Dr. John Granquist accept virtual/telehealth appointments?
Dr. John Granquist has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Where is Dr. John Granquist's office located?
Dr. John Granquist's office is located at 305 Western Blvd Ste 100, Glastonbury, CT, 06033.

Data Sources

This provider profile is built using data from:

  • NPPES NPI Registry
  • State medical licensing boards
  • Healthcare system and provider network data

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