Overview
John Granquist is a Cardiologist practicing medicine in Hartford,, Connecticut.
Dr. Granquist is highly rated in 19 conditions, according to our data. His clinical expertise encompasses Heart Attack, Apoplexy, Necrosis, Aortic Valve Stenosis, and Pacemaker Implantation.
Specialties
Licenses
Hospital Affiliations
Languages Spoken
Gender
Insurance
Accepted insurance can change. Please verify directly with the provider.
Accepted insurance plans:
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- PPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- PPO
- HMO
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- OTHER COMMERCIAL
- EPO
- HMO
- PPO
- EPO
- POS
- HMO
- INDEMNITY
- POS
- PPO
- EPO
- POS
- PPO
- OTHER MEDICAID
- STATE MEDICAID
- EPO
- HMO
- PPO
- PPO
- HMO
- EPO
- HMO
- POS
- PPO
- MEDICARE DISCOUNT CARD
- MEDICARE PDP
- OTHER MEDICARE
- EPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- OTHER MEDICARE
- OTHER MEDICARE PART D
Locations
85 Seymour St Ste 719, Hartford,, CT 06106
100 Simsbury Rd Ste 202, Avon,, CT 06001
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Frequently Asked Questions about Dr. John Granquist
How do I make an appointment with Dr. John Granquist?
You can book an appointment with Dr. John Granquist by calling their office at 860-525-1532. MediFind provides direct contact information so you can schedule visits, second opinions, or consultations without navigating third-party calendars.
Is Dr. John Granquist a top-rated expert for Heart Attack?
MediFind is an objective health platform that identifies experts based on real-world data. Dr. John Granquist is classified as an Distinguished expert for Heart Attack, meaning they are among the top experts in the country for this condition. This ranking is based on their volume of patients, published research, and peer connections.
What conditions does Dr. John Granquist specialize in?
While Dr. John Granquist is a Cardiology, they have specific expertise in Heart Attack, Apoplexy, and Necrosis. MediFind analyzes a doctor's articles and referral patterns to identify their specific areas of focus within Cardiology.
Does Dr. John Granquist accept my insurance?
Dr. John Granquist accepts most major insurance plans, including Aetna and Anthem BCBS. We recommend calling the office directly at 860-525-1532 to verify that your specific plan is currently accepted before your visit.
Areas of Expertise
MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.
Learn more about MediFind’s expert tiers
- Distinguished
- Heart AttackDr. Granquist isDistinguished. Learn about Heart Attack.
- Advanced
- AnginaDr. Granquist isAdvanced. Learn about Angina.
- Aortic Valve StenosisDr. Granquist isAdvanced. Learn about Aortic Valve Stenosis.
- ApoplexyDr. Granquist isAdvanced. Learn about Apoplexy.
- Arterial EmbolismDr. Granquist isAdvanced. Learn about Arterial Embolism.
- AtherosclerosisDr. Granquist isAdvanced. Learn about Atherosclerosis.
- Atrial FibrillationDr. Granquist isAdvanced. Learn about Atrial Fibrillation.
- Atrial TachycardiaDr. Granquist isAdvanced. Learn about Atrial Tachycardia.
- Atrioventricular Nodal Reentrant Tachycardia (AVNRT)
- CardiomyopathyDr. Granquist isAdvanced. Learn about Cardiomyopathy.
- Coronary Heart DiseaseDr. Granquist isAdvanced. Learn about Coronary Heart Disease.
- Familial Neurocardiogenic SyncopeDr. Granquist isAdvanced. Learn about Familial Neurocardiogenic Syncope.
- Heart FailureDr. Granquist isAdvanced. Learn about Heart Failure.
- Heart Failure with Preserved Ejection Fraction (HFpEF)
- His Bundle TachycardiaDr. Granquist isAdvanced. Learn about His Bundle Tachycardia.
- Multifocal Atrial TachycardiaDr. Granquist isAdvanced. Learn about Multifocal Atrial Tachycardia.
- NecrosisDr. Granquist isAdvanced. Learn about Necrosis.
- Paroxysmal Supraventricular Tachycardia (PSVT)
- Pulmonary EdemaDr. Granquist isAdvanced. Learn about Pulmonary Edema.
- Experienced
- Acute Coronary SyndromeDr. Granquist isExperienced. Learn about Acute Coronary Syndrome.
- Adenosine Deaminase 2 DeficiencyDr. Granquist isExperienced. Learn about Adenosine Deaminase 2 Deficiency.
- Aortic DissectionDr. Granquist isExperienced. Learn about Aortic Dissection.
- Aortic RegurgitationDr. Granquist isExperienced. Learn about Aortic Regurgitation.
- ArrhythmiasDr. Granquist isExperienced. Learn about Arrhythmias.
- Arrhythmogenic Right Ventricular Cardiomyopathy
- Arterial InsufficiencyDr. Granquist isExperienced. Learn about Arterial Insufficiency.
- Atrial Septal Defect (ASD)Dr. Granquist isExperienced. Learn about Atrial Septal Defect (ASD).
- Bicuspid Aortic ValveDr. Granquist isExperienced. Learn about Bicuspid Aortic Valve.
- Bidirectional TachycardiaDr. Granquist isExperienced. Learn about Bidirectional Tachycardia.
- Cardiac AmyloidosisDr. Granquist isExperienced. Learn about Cardiac Amyloidosis.
- Cardiac ArrestDr. Granquist isExperienced. Learn about Cardiac Arrest.
- Cardiogenic ShockDr. Granquist isExperienced. Learn about Cardiogenic Shock.
- Catecholaminergic Polymorphic Ventricular Tachycardia
- COVID-19Dr. Granquist isExperienced. Learn about COVID-19.
- Cystic Medial Necrosis of AortaDr. Granquist isExperienced. Learn about Cystic Medial Necrosis of Aorta.
- Ectopic HeartbeatDr. Granquist isExperienced. Learn about Ectopic Heartbeat.
- End-Stage Renal Disease (ESRD)Dr. Granquist isExperienced. Learn about End-Stage Renal Disease (ESRD).
- EndocarditisDr. Granquist isExperienced. Learn about Endocarditis.
- FaintingDr. Granquist isExperienced. Learn about Fainting.
- Familial Dilated CardiomyopathyDr. Granquist isExperienced. Learn about Familial Dilated Cardiomyopathy.
- Familial Hypertrophic CardiomyopathyDr. Granquist isExperienced. Learn about Familial Hypertrophic Cardiomyopathy.
- Familial Progressive Cardiac Conduction Defect
- Familial Ventricular TachycardiaDr. Granquist isExperienced. Learn about Familial Ventricular Tachycardia.
- Gallbladder DiseaseDr. Granquist isExperienced. Learn about Gallbladder Disease.
- Glucocorticoid-Remediable AldosteronismDr. Granquist isExperienced. Learn about Glucocorticoid-Remediable Aldosteronism.
- Heart MurmursDr. Granquist isExperienced. Learn about Heart Murmurs.
- High CholesterolDr. Granquist isExperienced. Learn about High Cholesterol.
- HypertensionDr. Granquist isExperienced. Learn about Hypertension.
- Hypertensive Heart DiseaseDr. Granquist isExperienced. Learn about Hypertensive Heart Disease.
- Infective EndocarditisDr. Granquist isExperienced. Learn about Infective Endocarditis.
- Liver FailureDr. Granquist isExperienced. Learn about Liver Failure.
- Low Blood PressureDr. Granquist isExperienced. Learn about Low Blood Pressure.
- Low Potassium LevelDr. Granquist isExperienced. Learn about Low Potassium Level.
- Metabolic SyndromeDr. Granquist isExperienced. Learn about Metabolic Syndrome.
- Mitral Valve ProlapseDr. Granquist isExperienced. Learn about Mitral Valve Prolapse.
- Mitral Valve RegurgitationDr. Granquist isExperienced. Learn about Mitral Valve Regurgitation.
- Orthostatic HypotensionDr. Granquist isExperienced. Learn about Orthostatic Hypotension.
- Pacemaker ImplantationDr. Granquist isExperienced. Learn about Pacemaker Implantation.
- Patent Foramen OvaleDr. Granquist isExperienced. Learn about Patent Foramen Ovale.
- Pediatric MyocarditisDr. Granquist isExperienced. Learn about Pediatric Myocarditis.
- Primary Localized Cutaneous AmyloidosisDr. Granquist isExperienced. Learn about Primary Localized Cutaneous Amyloidosis.
- Pulmonary EmbolismDr. Granquist isExperienced. Learn about Pulmonary Embolism.
- Sengers SyndromeDr. Granquist isExperienced. Learn about Sengers Syndrome.
- Spinal ShockDr. Granquist isExperienced. Learn about Spinal Shock.
- Supravalvular Aortic StenosisDr. Granquist isExperienced. Learn about Supravalvular Aortic Stenosis.
- Thoracic Aortic AneurysmDr. Granquist isExperienced. Learn about Thoracic Aortic Aneurysm.
- Unstable AnginaDr. Granquist isExperienced. Learn about Unstable Angina.
- Ventricular TachycardiaDr. Granquist isExperienced. Learn about Ventricular Tachycardia.

