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    Dr. Dennis M. Cassidy, MD

    Cardiovascular Disease, Clinical Cardiac Electrophysiology

    • (727) 545-3864

    Dr. Cassidy's Overview

    Dr. Cassidy graduated from the Mem Univ of Newfoundland, Fac of Med, St Johns, Nfld, Canada in 1978. He works in Saint Petersburg, FL and specializes in Cardiovascular Disease and Clinical Cardiac Electrophysiology. Dr. Cassidy is affiliated with Northside Hospital and Saint Petersburg General Hospital.

    Dr. Cassidy's Experience

    Years in Practice: 38

    Dr. Cassidy's Specialties

    Cardiovascular Disease, Clinical Cardiac Electrophysiology

    Dr. Cassidy's Education & Training

    Medical School: Mem Univ of Newfoundland, Fac of Med, St Johns, Nfld, Canada; Graduated 1978

    Dr. Cassidy's Rating

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    Overall Rating


    • Explains conditions & treatments
    • Takes time to answer my questions
    • Provides follow-up as needed
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    Dr. Cassidy's Accepted Insurance

    Please verify insurance information directly with your doctor's office as it may change frequently.

    • Aetna HMO
    • Aetna Managed Choice POS Open Access
    • Aetna Signature Administrators PPO
    • BCBS Blue Card PPO
    • CIGNA LocalPlus
    • CIGNA Open Access Plus
    • Coventry FL Employer Group HMO Open Access
    • Coventry FL Employer Group PPO
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    Dr. Cassidy's Office Information & Appointments

    Office Locations

    The Heart Institute

    6006 49th St N Ste 200
    Saint Petersburg, FL 33709
    (727) 545-3864


    Office Hours and Information

    Fax: (727) 544-7389

    Practice Website:

    Accepting New Patients: Yes

    Medicare Accepted: Yes

    Medicaid Accepted: Yes

    Monday 9:00 AM - 5:00 PM
    Tuesday 9:00 AM - 5:00 PM
    Wednesday 9:00 AM - 5:00 PM
    Thursday 9:00 AM - 5:00 PM
    Friday 9:00 AM - 5:00 PM
    Saturday Closed
    Sunday Closed

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