Cardiology

Dennis M. Cassidy, MD

Electrophysiology

St. Petersburg

  • Accepting new patients
About Dennis M. Cassidy, MD

Dennis M. Cassidy, MD, is a board-certified clinical cardiac electrophysiologist. Dr. Cassidy’s educational journey began in Canada, where he earned a bachelor’s degree in biology, graduating with honors, from Arcadia University in Wolfville, Nova Scotia. He then obtained his medical degree from Memorial University of Newfoundland, followed by an internship in internal medicine at Memorial. He completed his residency in internal medicine at the University of Toronto and a cardiology residency at Queen’s University in Kingston, Ontario.

Dr. Cassidy received a Canadian Heart Foundation research fellowship, which enabled him to complete a three-year fellowship in clinical cardiac electrophysiology at the Hospital of the University of Pennsylvania. He has authored and co-authored several articles in the field of cardiac electrophysiology.

Additionally, Dr. Cassidy earned an MBA with a finance concentration from the University of Tampa. He was affiliated with the University of South Florida Morsani School of Medicine, where he directed the inpatient cardiac electrophysiology service at Tampa General Hospital. His dedication to education was recognized with The Guillermo B. Cintron Award for excellence in cardiology teaching.

Medical Education
  • Memorial University of Newfoundland
    Newfoundland, Canada
    Doctor of Medicine
Internship/Residency
  • Queen's University
    Kingston, Ontario
    Cardiology Residency
  • University of Toronto
    Toronto, Canada
    Internal Medicine Residency
  • Memorial University of Newfoundland
    Newfoundland, Canada
    Internal Medicine Internship
Fellowships
  • Hospital of the University of Pennsylvania
    Philadelphia, PA
    Clinical Cardiac Electrophysiology
Professional Activities
  • University of South Florida Morsani School of Medicine, Director of Inpatient Cardiac Electrophysiology at Tampa General Hospital
Honors
  • The Guillermo B. Cintron Award for Excellence in Cardiology Teaching.
Special Interests

Diagnosis and Management of Electrical Abnormalities of the Heart

St. Petersburg 601 7th Street South, St. Petersburg, FL 33701  Suite 205

St. Petersburg

601 7th Street South
St. Petersburg, FL 33701

Suite 205


Florida Medical Clinic Orlando Health participates with most major carriers. Please consult your insurance carrier or contact one of our scheduling representatives in our office prior to your appointment to verify our participation status with your insurance plan.

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