Lucile Packard Children's Hospital at Stanford (LPCH) is a nationally ranked women's and children's hospital which is part of the Stanford University Health system. The hospital is located adjacent to the campus at 725 Welch Road, Palo Alto, California. It was founded in 1991 and is staffed by over 650 physicians with 4,750 staff and volunteers. The hospital specializes in the care of infants, children, teens, young adults aged 0–21, but sometimes treats older adults and expectant mothers. Lucile Packard Children's Hospital is an ACS verified Level 1 regional pediatric trauma center, 1 of 7 in the state.