Cardiologists specialize in disorders and irregularities of the heart, including coronary artery disease, heart disease, heart defects and heart failure. Although there is no official ranking system for the best cardiology programs in the country, U.S. News and World Report completed a ranking of the best internal medicine programs in 2010. Johns Hopkins University, Harvard University and the University of California San Francisco were ranked the best medical schools for students wishing to pursue careers in internal medicine, including cardiology.

Johns Hopkins University

The School of Medicine at Johns Hopkins University in Baltimore, Maryland, offers the No. 1 program in internal medicine, according to a 2010 ranking by U.S. News. This program has an enrollment of about 500 medical students a year, and the annual tuition is approximately $40,000. In addition to following a thorough curriculum, students gain hands-on experience working with patients in the Heart and Vascular Institute. The program has more than 40 full-time faculty members with specialties in angiography, preventive cardiology and electrophysiology.

Johns Hopkins University 733 N. Broadway Baltimore, MD 21205 410-955-3182 hopkinsmedicine.org

Harvard University

The Harvard Medical School at Harvard University in Boston, Massachusetts, offers the second best program in internal medicine, according to the 2010 ranking by U.S. News. According to the program's website, students enrolled in the Cardiovascular Division conduct research into hemodynamics, cardiovascular homeostasis, clinical epidemiology and more. Students also work with patients at the Beth Israel Deaconess Medical Center. The university has about 700 medical students enrolled each year, and tuition costs approximately $43,000 annually.

Harvard University 25 Shattuck St. Boston, MA 02115 617-432-1550 harvardscience.harvard.edu

University of California San Francisco

The University of California San Francisco offers the third best program in internal medicine, including cardiology, according to U.S. News. The Division of Cardiology emphasizes patient care, diagnosis and condition management. According to the program's website, faculty members specialize in such areas as interventional cardiology, heart failure and transplantation, electrophysiology, echocardiography and stress testing. Students conduct research in the university's laboratory and clinics and may pursue educational opportunities and fellowships.

University of California San Francisco 400 Parnassus Ave. San Francisco, CA 94143 415-353-4624? cardiology.ucsf.edu/