Mayo Clinic Laboratories is the global leader in diagnostics, dedicated to collaborative discoveries and patient breakthroughs. Together with Mayo Clinic, we relentlessly innovate on behalf of patients, building the diagnostics ecosystem of the future to help physicians save and improve more lives. At Mayo Clinic, research is essential to improving patient care. See how discoveries are translated into therapies that improve lives. Find clinical trials. Legal restrictions and terms of use applicable to this site Use of this site signifies your agreement to the terms of use. © 1998 - Today Mayo Foundation for Medical Education and Research. All rights reserved. Mayo Clinic continues to provide clear, reliable, and compassionate medical services for every patient. Seamless care that revolves around you: more than 4,700 physicians and scientists collaborate across Mayo Clinic campuses in Arizona, Florida and Minnesota. U.S. News & World Report ranks Mayo Clinic as the 1 hospital overall and 1 in more specialties than any other hospital in the nation. Learn More Need help? If you need support for the patient portal or Mayo Clinic app, visit the Mayo Clinic Patient Portal Assistance page or call us at 1-877-858-0398. Explore education and research opportunities and resources at Mayo Clinic, where academic leaders, faculty members, and scientists work together to improve patient care. Mayo Clinic Mayo Clinic (/ ˈmeɪoʊ / MAY-oh) is a private American academic medical center focused on integrated healthcare, education, and research. [4] It maintains three major campuses, in Rochester, Minnesota; Jacksonville, Florida; and Phoenix / Scottsdale, Arizona. As part of Mayo Clinic, our clinics, hospitals and healthcare facilities serve communities in Iowa, Wisconsin and Minnesota.