Merrill Krolick, DO, an Interventional Cardiologist with The Heart Institute at Largo

Get to know Interventional Cardiologist Dr. Merrill Krolick, who serves patients in Largo, Florida.

Having been in clinical practice since 1992, Dr. Krolick is an interventional cardiologist who is quadruple board-certified in cardiovascular disease, internal medicine, endovascular medicine, and interventional cardiology by the American Board of Internal Medicine (ABIM). The ABIM is a physician-led, non-profit, independent evaluation organization driven by doctors who want to achieve higher standards for better care in a rapidly changing world.He is also boarded in endovascular medicine.

At present, he is practicing at The Heart Institute at Largo in Largo, Florida. The Heart Institute at Largo is committed to providing the highest quality cardiovascular care possible for adults aged 18 and up. In order to provide this level of care, the providers work closely with patients’ primary care physician, allowing services to be delivered in a customized and efficient manner.

Professionally, Dr. Krolick is an attending cardiologist at Largo Medical Center, Morton Plant Hospital, and HCA Largo Indian Rocks Hospital. He also serves as Director of the Interventional Cardiology Fellowship and Co-Director of the Cardiology Fellowship Program at Largo Medical Center. Moreover, he has been known for his service as an Associate Professor in Cardiology at both the University of South Florida and Nova Southeastern University in Fort Lauderdale, Florida. 

Prior to his current endeavours, he practiced at Fairfax Hospital in Fairfax, Virginia, and Prince William Cardiology in Manassas, Virginia. In order to stay up to date in his field, he remains a member of the American College of Cardiology, the American Medical Association, the Society for Cardiovascular Angiography and Interventions, the American College of Chest Physicians, the American Osteopathic Association, and the American College of Physicians – Florida Chapter.

The doctor’s acclaimed career in medicine began in 1985 when he earned his Doctor of Osteopathic Medicine (DO) degree from the New York Institute of Technology College of Osteopathic Medicine in Old Westbury, New York. He then went on to complete his internship at Sun Coast Hospital in 1986, followed by his residency and fellowship at the University of South Florida College of Medicine in 1989 and 1992, respectively. 

Recognized as both a national and local leader in endovascular interventions, Dr. Krolick has served as a clinical investigator on numerous drug and clinical device trials, including drug-coated balloons for treatment of peripheral vascular disease and the original drug-coated stent trials for coronary artery disease. He continues to practice noninvasive cardiology and interventional cardiology, as well as maintains a special interest in peripheral vascular disease. He has spoken at several major vascular meetings and has contributed numerous articles in such publications as The New England Journal of Medicine, as well as chapters in cardiovascular textbooks.

Interventional cardiology is the subspecialty of cardiology that deals specifically with the catheter-based treatment of heart diseases. The field includes the diagnosis and treatment of coronary artery disease, vascular disease, and acquired structural heart disease. An interventional cardiologist is a cardiologist with one to two years of additional education and training in diagnosing and treating cardiovascular disease, as well as congenital (present at birth) and structural heart conditions through catheter-based procedures, such as angioplasty and stenting.

On the subject of his personal life, Dr. Krolick was born in New York City. He has two children. 

Learn More About Dr. Merrill Krolick:

Through his findatopdoc profile, or through The Heart Institute at Largo, 


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Karen Johnson

Karen Johnson is an Associate Content manager for FindaTopDoc and responsible for working with distinguished physicians in documenting their significant accomplishments in their field. Karen is a CPR instructor and is a member of her local theater group.