Three Southern California hospitals — UCLA Health, UCI Health and Hoag Memorial Hospital Presbyterian — received high marks Tuesday in the annual rankings issued by U.S. News & World Report, which judged them to be among America’s best hospitals. The rankings recognize hospitals that excel in treating the most challenging patients and conditions. For the 2020-21 rankings and ratings, U.S. News evaluated more than 4,500 medical centers nationwide in 25 specialties, procedures and conditions.