"U.S. News & World Report" identified the top 10 medical schools in the United States as of 2010 based on research, averaging such factors as student selectivity, faculty-student ratio and productivity as related to research. The magazine picked its honor roll from among the 146 medical schools in the country and found Harvard in the top spot.

Harvard University

Harvard Medical School's website says its mission is " to create and nurture a diverse community of the best people committed to leadership in alleviating human suffering caused by disease." Harvard Medical School opened its doors on Sept. 19, 1782. Tuition was approximately $42,500 for the 705 students enrolled in the program in 2009, according to the "U.S. News & World Report" survey.

Harvard Medical School 25 Shattuck St. Boston, MA 02115 617-432-1000 hms.harvard.edu

University of Pennsylvania

The University of Pennsylvania, established in 1765, is the oldest medical school in the United States, according to its website. The medical school at Penn, ranked No. 2 by "U.S. News," stresses the importance of serving patients with skill and compassion.  Tuition is $42,472 , according to "U.S. News," for approximately 725 students enrolled in 2009, according the school’s website.

University of Pennsylvania School of Medicine 295 John Morgan Building 3620 Hamilton Walk Philadelphia, PA 19104 215-662-4000 med.upenn.edu

Johns Hopkins University

A wealthy Baltimore merchant named Johns Hopkins left a large endowment to open a hospital for all patients, regardless race, gender or social status, resulting in Johns Hopkins' School of Medicine in 1893. Third-ranked Johns Hopkins follows that tradition more than a century later for its approximately 500 medical students. Tuition is approximately $39,500, and 85 percent of students receive financial aid as of 2010, according to its website.

Johns Hopkins University School of Medicine 733 N. Broadway, Suite G49 Baltimore, MD 21205 410-955-3182 hopkinsmedicine.org

University of California San Francisco

The University of California San Francisco began in 1864 as Toland Medical College. According to its website, approximately 149 medical students entered in 2009 for a total of 631 students in the medical program. Its website says the fourth-ranked school rates highly for research into AIDS medicine, women's health and internal medicine.

University of California San Francisco Medical School 513 Parnassus Ave. San Francisco, CA 94143 415-476-2342 medschool2.ucsf.edu

Washington University St. Louis

The medical school at Washington University, also ranked fourth, was founded in 1891. In 1909, a successful business man, Robert Brookings, gave the school the endowment it needed to become successful. Wash U boasts 17 Nobel laureates associated with the school. Tuition is $47,150, according to the website, and 604 students are enrolled in the medical program.

Washington University St. Louis Medical School 660 S. Euclid Ave. St. Louis, MO 63110 314-362-5000 medschool.wustl.edu

Duke University

Duke University opened in 1925, funded by benefactor James Buchanan Duke. Just five years after opening, the Association of American Medical Colleges ranked Duke in the top quarter of medical schools in the country. Now "U.S. News" ranks it sixth. Additional accomplishments include establishing the first physician assistant and brain tumor treatment programs. Duke's enrollment as of 2009 was 421, according to the website, and tuition is $42,771.

Duke University School of Medicine Office of Admissions DUMC 3710 Durham, NC 27710 919-684-2985 dukemedicine.org

University of Michigan Ann Arbor

The mission of the medical school at the University of Michigan Ann Arbor, also ranked sixth, is “to educate students, physicians and biomedical scholars and to provide a spectrum of comprehensive knowledge, research, patient care and service of the highest quality to the people of the state of Michigan and beyond.” As of 2009 enrollment is 706 and tuition for a resident is $27,473, or $43,827 for nonresidents.

University of Michigan Ann Arbor 1301 Catherine Road Ann Arbor, MI 48109 734-763-9600 med.umich.edu

University of Washington

The University of Washington opened its doors to the first class of medical students in fall 1946. The medical school, also ranked sixth, is renowned for its strides in family medicine, rural medicine, AIDS and women's health. Four Nobel Prize winners were on the faculty in 2010. Tuition is $20,997 as of 2009.

University of Washington 1959 N.E. Pacific St. Seattle, WA 98195 206-543-2100 uwmedicine.washington.edu

Yale University

The mission of Yale, also ranked sixth, is to “provide an education in the scholarly and humane aspects of medicine and to foster the development of leaders who will advance medical practice and knowledge,” its website reports. According to "U.S. News," Yale's enrollment in 2009 was 414 and tuition was $43,850.

Office of Admissions Yale School of Medicine E.S. Harkness Memorial Hall D 367 Cedar St. New Haven, CT 06510 203-785-2643 yale.edu

Columbia University

Columbia University has approximately 2,900 students enrolled in the Medical Center, with 638 in the M.D. program, according to "U.S. News." Tuition at Columbia, ranked 10th by "U.S. News," is approximately $44,864.

Columbia University Medical Center 630 W. 168th St. New York, NY 10032 212-305-2862 cumc.columbia.edu