Take the MCAT if you haven't already done so. Most medical schools require an MCAT score, and you need to know your score before you can narrow down your choice of pediatric schools.
Check out the U.S. News and World Report or the Peterson's Guide to Graduate Schools. These publications can provide you with background information on hundreds of schools.
Consider classroom size, student-to-faculty ratio, internship opportunities and hands-on training. For example, if you want to attend a school with a lot of personal interaction, you will want to find a school with a low student-to-teacher ratio.
Consider rankings and the specialty programs that each school offers. Would you like to practice medicine abroad? Do you want to spend quality time at a teaching hospital? Narrow down your search based on your career goals.
Calculate how much money you will need. Figure out what kind of state and federal financial aid packages that you qualify for. Apply for scholarship and fellowship programs at several schools. Many schools recommend against holding a job while taking medical school classes, and you must take this into consideration when selecting a school.
Consider the region. Would you be happy in a large city away from your friends and family? Is a long plane ride to the school worth the other amenities that the school offers?
Ask your friends, colleagues and professors if they have any contacts at pediatric medical schools. A contact may be able to send a letter of recommendation to the right people or assure you a spot in a program.