Jason Zelenka M.D.
Practice: Clearwater Cardiovascular Consultants
Specialty: Cardiology: Congestive Heart Failure, Nuclear Cardiology, Preventive Cardiology, Stress Echocardiography, Transthoracic & Transesophageal Echocardiography
Office locations: Safety Harbor, FL
Dr. Jason Zelenka was born in Minnesota and raised in Upstate New York. A summa cum laude graduate of State University of New York at Albany, Dr. Zelenka received his medical degree from State University of New York College of Medicine at Syracuse. His internship and residencies were completed at Indiana University School of Medicine. Dr. Zelenka, under the tutelage of Harvey Feigenbaum, M.D., distinguished professor of medicine at Indiana University School of Medicine and recognized as “Father of Modern Echocardiography”, completed his cardiovascular fellowship at the Krannert Institute of Cardiology in Indianapolis where he served as chief cardiology fellow in 2002-2003 and completed a 7 month preceptorship in nuclear cardiology. Dr. Zelenka joined Clearwater Cardiovascular Consultants in 2003. Dr. Zelenka is a fellow of the American College of Cardiology and board certified in cardiovascular disease. He also holds credentials from the National Board of Echocardiography in adult comprehensive echocardiography. His interests include echocardiography, vascular ultrasound, nuclear cardiology, cardiac PET, and cardiac computed tomography. He is co-director of our vascular laboratories, active in our cardiac research studies, and is an Affiliate Assistant Professor at the University of South Florida College of Medicine. Dr. Zelenka is available to see patients at the Countryside office.
Dr. Jason Zelenka was born in Minnesota and raised in Upstate New York. A summa cum laude graduate of State University of New York at Albany, Dr. Zelenka received his medical degree from State University of New York College of Medicine at Syracuse. His internship and residencies were completed at Indiana University School of Medicine. Dr. Zelenka, under the tutelage of Harvey Feigenbaum, M.D., distinguished professor of medicine at Indiana University School of Medicine and recognized as “Father of Modern Echocardiography”, completed his cardiovascular fellowship at the Krannert Institute of Cardiology in Indianapolis where he served as chief cardiology fellow in 2002-2003 and completed a 7 month preceptorship in nuclear cardiology. Dr. Zelenka joined Clearwater Cardiovascular Consultants in 2003. Dr. Zelenka is a fellow of the American College of Cardiology and board certified in cardiovascular disease. He also holds credentials from the National Board of Echocardiography in adult comprehensive echocardiography. His interests include echocardiography, vascular ultrasound, nuclear cardiology, cardiac PET, and cardiac computed tomography. He is co-director of our vascular laboratories, active in our cardiac research studies, and is an Affiliate Assistant Professor at the University of South Florida College of Medicine. Dr. Zelenka is available to see patients at the Countryside office.
Countryside Office
Suite 202
safety Harbor, FL 34695
Dr. Jason Zelenka was born in Minnesota and raised in Upstate New York. A summa cum laude graduate of State University of New York at Albany, Dr. Zelenka received his medical degree from State University of New York College of Medicine at Syracuse. His internship and residencies were completed at Indiana University School of Medicine.
Dr. Zelenka, under the tutelage of Harvey Feigenbaum, M.D., distinguished professor of medicine at Indiana University School of Medicine and recognized as “Father of Modern Echocardiography”, completed his cardiovascular fellowship at the Krannert Institute of Cardiology in Indianapolis where he served as chief cardiology fellow in 2002-2003 and completed a 7 month preceptorship in nuclear cardiology.
Dr. Zelenka joined Clearwater Cardiovascular Consultants in 2003. Dr. Zelenka is a fellow of the American College of Cardiology and board certified in cardiovascular disease. He also holds credentials from the National Board of Echocardiography in adult comprehensive echocardiography. His interests include echocardiography, vascular ultrasound, nuclear cardiology, cardiac PET, and cardiac computed tomography. He is co-director of our vascular laboratories, active in our cardiac research studies, and is an Affiliate Assistant Professor at the University of South Florida College of Medicine.
Dr. Zelenka is available to see patients at the Countryside office.

Fantastic professional. Kind, thorough, and brilliant.
Has been my cardiologist for 22 yrs, None better!
Made all the difference in providing me guidance to build up my heart to continue on life’s journey. He truly cares about his patients.
I cannot say enough wonderful things about Dr. Jason Zelenka, his attending staff, and the entire office team. From the moment you walk through the door, you are greeted with warmth, professionalism, and genuine compassion. The front desk staff makes checking in seamless, managing logistics efficiently while maintaining an incredibly welcoming environment. Dr. Zelenka’s attending staff and clinical team are phenomenal. They are thorough, highly skilled, and treat you like a person rather than just a chart number. They take the time to listen, explain preliminary details, and ensure you are comfortable before you even see the doctor. As for Dr. Zelenka himself, he is truly a stellar cardiologist. He combines world-class medical expertise with a compassionate, reassuring bedside manner. He doesn't rush through appointments; instead, he takes the time to break down complex medical information into clear, understandable language, ensuring you are fully informed and confident. LOVE THEM!
Very informative and easy to talk to
Very bright. Very attentive to patient input. Adjusts treatment to individual patient needs and concerns.
Comprehensive exam, quickly scheduled tests and follow-up appointment. Thank you
He is the best. Caring and thoughtful. I am so grateful that he accepted me as a patient.
Cordial, easy to talk to, very nice doctor!
Excellent care!