Trust the group for experts in internal medicine, family medicine, pediatrics and 18 specialties. TriHealth Group Health is one of the largest multi-specialty medical groups in the region, providing a continuum of care for more than 200,000 patients each year. Since 1974, our growing staff of physicians, nurse practitioners, physician assistants and other qualified medical professionals has provided care in internal medicine, family medicine, pediatrics and 18 specialties.