For 22 years, U.S. News & World Report has issued a report card grading the nation’s hospitals for patient care and acknowledging 50 hospitals as the best. This year, as in years past, Johns Hopkins Hospital, Massachusetts General Hospital and the Mayo Clinic have been chosen as top performers for demonstrating superior care in at least six of the 16 specialties. Cleveland Clinic reclaims its position as number one for heart care for the 17th year in a row.