Cardiology

Marcus St John, MD

Marcus St. John, M.D., FACC, FSCAI, is an interventional cardiologist with Miami Cardiac & Vascular Institute and is the Medical Director of the Cardiac Catheterization Lab at Baptist Hospital. He specializes in diagnosing and treating a wide range of cardiovascular diseases through catheter-based procedures, such as angioplasty and stenting. In addition to interventional cardiology, his clinical interests include general and preventive cardiovascular medicine. Dr. St. John has conducted clinica

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Credentials

Years in Practice

25+ years

Peer Recognition

Castle Connolly — Top Doctor
2012-2026 (15 years)

Clinical Focus

Subspecialties

Interventional Cardiology

Conditions & Treatments

Coronary StentingCardiac CatheterizationCoronary InterventionCoronary Artery DiseaseHeart Attack & Acute Coronary Syndrome

Insurance(s) Accepted

90 Degree BenefitsASR Health Benefits

AetnaAllegiance Health PlansAspirus Health Plan

Please verify your coverage with the provider — plan participation can change.

Practice Details

Hospital Affiliations

South Miami Hospital
Mariners Hospital

Conditions Dr. John treats

Insurance accepted

Frequently asked

Does Dr. John accept 90 Degree Benefits insurance?

Marcus St John's public profile lists 90 Degree Benefits, ASR Health Benefits, and Aetna plus 47 more health plans as accepted plans. Plan participation can change — confirm directly with the practice before your visit.

Where does Dr. John practice?

Marcus St John practices in Miami, FL with hospital affiliations including South Miami Hospital and Mariners Hospital.

What does Dr. John specialize in?

Marcus St John is a board-certified cardiology specialist with focus areas in Interventional Cardiology.

How long has Dr. John been practicing?

Marcus St John has 29+ years of clinical experience in cardiology.