A clinical cardiologist is an internal physician who specializes in diagnosing and treating conditions that affect the heart and surrounding blood vessels. Cardiologists require specialized education and training that teaches them how to prevent and treat diseases affecting the heart.

These may include heart attacks, stroke, coronary artery disease and related conditions. According to the. U.S. Bureau of Labor Statistics, employment growth for clinical cardiologists is good with opportunities expected to increase by as much as 24 percent through 2020, which is faster than average for all occupations.