Cardiologists in the heart of Tampa

Choose the state-of-the-art Tampa Heart center for the highest quality, personalized cardiac care. We provide access to the latest cutting-edge technology right here in Tampa, Florida.


For over 35 years, we have been
helping you live a heart-healthy life.

Procedures We Perform

  • Coronary Angiography and Interventions
  • High-Risk Coronary Interventions (Chronic Total Occlusion and Impella-Assisted PCI)
  • Peripheral Angiography and Interventions
  • Valve Procedures (TAVR and MitraClip)
  • PFO/ASD Closure
  • Watchman Procedure
  • Pacemaker Implantation
  • Advanced Mechanical Support (Impella, ECMO)

Appointment Form

Our Services

We offer a wide range of inpatient and outpatient testing and procedures.

Diagnostic Imaging

Our state-of-the-art clinic offers quality in-house treadmill and pharmacologic stress test procedures, echocardiography, vascular ultrasound, and functional assessment for the diagnosis of arterial and venous conditions.

Valve Clinic

Our experienced fellowship-trained structural interventional cardiologists manage complex heart valve conditions and perform cutting-edge valve procedures like TAVR/TMVR (transcatheter aortic/mitral valve replacement), TEER (Transcatheter edge-to-edge repair) of the mitral valve with the MitraClip device, and a large variety of valve procedures.

Interventional Cardiology and High-Risk Interventions

Tampa Heart cardiologists have performed over 3,000 coronary interventions, including high risk and complex procedures and will carefully evaluate your new symptoms or closely follow-up after heart attack, stents or open heart surgery to eliminate the chance of a future adverse event.

Heart Failure Clinic

We have extensive experience and expertise in diagnosing and treating heart failure. We provide regular office visit assessments, optimal adjustment of medical therapy, diet and exercise regimen for prolonged lifespan and improved quality of life.

Meet the Team

Our Expert Cardiologists

K. Marmagkiolis MD

K. Marmagkiolis MD


Dr. Marmagkiolis is board certified in Cardiovascular Diseases and Interventional Cardiology. He completed his general cardiology fellowship at the Montreal Heart Institute and his interventional cardiology fellowship at William Beaumont Hospital in Michigan.

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J. Caballero MD

J. Caballero MD


Dr. Caballero is board certified in Cardiovascular Diseases and Interventional Cardiology. He completed his internal medicine residency at Yale University, his general cardiology and interventional cardiology fellowship at the University of Nebraska Medical Center.

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Talk with an
Experienced Cardiologist

Call us to schedule an appointment today.

About Us

Tampa Heart, Tampa, FL

Founded in 1984, Tampa Heart is one of the first heart centers established in the Tampa Bay area. Our board-certified healthcare providers bring with them decades of experience and are graduates of some of the most prestigious Universities and Health Systems (Emory, Yale, Harvard, Duke, William Beaumont), who provide excellent quality of care and work to exceed your expectations.

What People Say

Happy Patients

Thank you for being so kind, patient and a good friend motivating me during this difficult time, Gracias Dr. Caballero.


Dr. Caballero, I wanted to thank you for taking such good care of me when I was in Florida. I am back in St Louis, and I feel I am getting stronger every day.


Dr. Marmagkiolis, thank you for saving my life on February 6th.


On July 9th, you (i.e. Dr. Marmagkiolis) and Dr. Caballero and my Savior Jesus Christ played a big part in saving my husband’s life, for that I am eternally grateful. This card of Thanks really cannot express my gratitude, but I know that I am so grateful for the gift God has entrusted into your care to save lives



Changing Lives Daily

Conditions We Treat

  • Hypertension
  • Hyperlipidemia
  • Coronary artery disease
  • Heart Attack
  • Angina
  • Cardiac arrhythmias
  • Atrial fibrillation and flutter
  • Heart Failure
  • Cardiomyopathies
  • Heart Valve Diseases
  • Aortic Stenosis
  • Mitral Regurgitation
  • Cryptogenic Stroke Evaluation
  • Varicose veins
  • Peripheral arterial disease
  • Carotid arterial disease

Symptoms We Evaluate

  • Chest pain
  • Palpitations
  • Syncope
  • Shortness of Breath
  • Fatigue on exertion
  • Heart murmurs
  • Leg swelling
  • Leg pain
  • Varicose veins
  • Family history of heart disease
  • Preoperative cardiac evaluation
  • Cardiac surgery follow-up
  • Stroke due to heart disease