MaineHealth

MaineHealth is a regional nonprofit health care system that comprises a network of hospitals, health care facilities, and clinics in Maine and New Hampshire. The system is affiliated with the Tufts University School of Medicine for both teaching and research. It is the largest hospital system in northern New England.

MaineHealth includes a Level I trauma center/teaching hospital; seven community hospitals and two community hospital campuses of Maine Medical Center; three specialty hospitals including Maine's only children's hospital; NorDx, a health sciences laboratory; and the MaineHealth Institute for Research. MaineHealth hospitals have been lauded by regional and national organizations.

Maine Medical Center received its first National Institutes of Health research grant in 1962. The MaineHealth Institute for Research has researched potential chronic diseases such as Chronic Lyme disease and Long COVID. A blood-based biomarker test for cancer, currently in clinical trials, was developed by MaineHealth in conjunction with the University of New England. In 2025, the federal government cut $250,000 in annual funding for the MaineHealth Institute of Research due to its research on vaccine hesitancy.

MaineHealth is the largest private employer in Maine.