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Dr. William Gionfriddo, MD

Hartford, CT

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Gionfriddo, Internist in Hartford, CT?

    Dr. William Gionfriddo, MD is an Internist, who primarily practices in Hartford, CT with 2 additional practice locations. Dr. Gionfriddo graduated from University of Connecticut School of Medicine. Dr. Gionfriddo is fluent in English, and is currently seeing new patients. Dr. Gionfriddo’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Gionfriddo’s office at (617) 636-5000.

    Where did Dr. Gionfriddo go to medical school and complete their residency?

    • Medical School: University of Connecticut School of Medicine

    What languages does Dr. Gionfriddo speak?

    Dr. Gionfriddo and their clinical team can communicate with patients in the following languages:

    • English

    What conditions does an Internist like Dr. Gionfriddo typically treat?

    As an Internist, Dr. Gionfriddo diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Gionfriddo. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.

    Also known as:

    • Atrial Fibrillation
    • Complete Heart Block
    • Atrial Flutter
    • Arrhythmia
    • Familial atrial fibrillation
    • Afib
    • A-fib
    • Persistent atrial fibrillation
    • Irregular heart rhythm
    • Complete AV Block
    • Third-Degree Heart Block
    • A-flutter
    • Heart flutter
    • Rapid atrial rhythm

    ICD-10 Codes:

    • I4819: Other persistent atrial fibrillation
    • I480: Paroxysmal atrial fibrillation
    • I442: Atrioventricular block, complete
    • I484: Atypical atrial flutter
    • I483: Typical atrial flutter

    Also known as:

    • Fainting
    • Syncope
    • Passing out
    • Collapse

    ICD-10 Codes:

    • R55: Syncope and collapse

    Also known as:

    • High Blood Pressure
    • Hypertension
    • Primary Hypertension
    • Essential Hypertension

    ICD-10 Codes:

    • I10: Essential (primary) hypertension

    Also known as:

    • Other Cardiac Implants
    • Heart Devices
    • Cardiac Grafts
    • Implantable Heart Devices

    ICD-10 Codes:

    • Z95818: Presence of other cardiac implants and grafts

    Also known as:

    • Abnormal EKG
    • Heart Health Tests
    • Irregular Electrocardiogram
    • Unusual Heart Rhythm Test
    • ECG Abnormalities

    ICD-10 Codes:

    • R9431: Abnormal electrocardiogram [ECG] [EKG]

    What procedures does an Internist like Dr. Gionfriddo typically perform?

    As an Internist, Dr. Gionfriddo performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. Gionfriddo. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.

    Also known as:

    • Subcutaneous Cardiac Rhythm Monitor Insertion
    • Implantable Loop Recorder Insertion
    • Under-Skin Heart Monitor
    • Cardiac Event Recorder Implant

    CPT Codes:

    • 33285: Insertion, subcutaneous cardiac rhythm monitor, including programming

    Also known as:

    • Implantable Defibrillator Placement
    • ICD insertion
    • Permanent defibrillator implant
    • Heart defibrillator replacement
    • Transvenous defibrillator system

    CPT Codes:

    • 33249: Insertion or replacement of permanent implantable defibrillator system, with transvenous lead(s), single or dual chamber

    Also known as:

    • Dual-Chamber Pacemaker Insertion
    • Permanent Pacemaker Placement
    • Atrial and Ventricular Pacemaker
    • Heart Rhythm Device Implantation

    CPT Codes:

    • 33208: Insertion of new or replacement of permanent pacemaker with transvenous electrode(s); atrial and ventricular

    Also known as:

    • Left Ventricle Pacing Lead Insertion
    • Cardiac Pacing Electrode Placement
    • LV Lead Insertion
    • Pacemaker Upgrade Lead

    CPT Codes:

    • 33225: Insertion of pacing electrode, cardiac venous system, for left ventricular pacing, at time of insertion of implantable defibrillator or pacemaker pulse generator (eg, for upgrade to dual chamber system) (List separately in addition to code for primary procedure)

    Also known as:

    • Pacemaker Battery Replacement (Dual Lead)
    • Pacemaker Generator Exchange
    • Dual Lead Pacemaker Replacement
    • Heart Pacemaker Battery Change
    • Pacemaker Pulse Generator Replacement

    CPT Codes:

    • 33228: Removal of permanent pacemaker pulse generator with replacement of pacemaker pulse generator; dual lead system

    Does Dr. Gionfriddo accept my insurance?

    Dr. Gionfriddo accepts most major insurance plans. Important: Please call our office at (617) 636-5000 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Gionfriddo accept in Hartford, CT?

    Dr. Gionfriddo in Hartford, CT accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • Medicare

    • Unknown

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    Where is Dr. Gionfriddo's office located?

    Dr. William Gionfriddo's Primary Practice

    114 Woodland St

    Hartford, CT 06105

    (617) 636-5000

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    Dr. William Gionfriddo's Practice 2

    170 Governors Ave

    Medford, MA 02155

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    Dr. William Gionfriddo's Practice 3

    800 Washington St

    Boston, MA 02111

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    What is Dr. Gionfriddo's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.

    Dr. Gionfriddo's National Provider Identifier (NPI) number is 1497167936.

    What common questions do patients ask about Dr. Gionfriddo?

    Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Gionfriddo

    What is Dr. William Gionfriddo's specialty?

    Dr. Gionfriddo is a Internist near Hartford, CT.

    What does an Internist do?

    A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

    Is this Dr. William Gionfriddo affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Gionfriddo is affiliated with Saint Francis Hospital - Hartford, Ct, Smilow Cancer Hospital At Yale New Haven, Bristol Hospital, Hartford Healthcare Manchester Memorial Hospital which are a Castle Connolly Top Hospitals. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals

    When to see an Internist?: Guides for symptoms, conditions, and treatments

    Understand your symptoms and know when it’s time to see an Internist. Explore insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.

    Is William Gionfriddo accepting new patients in Hartford, CT?

    Yes, Dr. William Gionfriddo is accepting new patients at this time.

    Does Dr. William Gionfriddo offer online booking?

    Please contact Dr. Gionfriddo's office at (617) 636-5000 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with William Gionfriddo?

    Please contact Dr. Gionfriddo's office at (617) 636-5000 for information regarding telehealth appointment availability or for scheduling assistance.

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