LEWISTON – Starting June 1, the Sisters of Charity Health System will become St. Mary’s Health System, leading a dozen well-known charities, medical groups and others affiliated with the organization to change their names.

Among the biggest changes:

• Maison Marcotte, an independent living facility, will become St. Mary’s Residences.

• St. Marguerite d’Youville Pavilion, a nursing care facility, will become St. Mary’s d’Youville Pavilion.

• Renaissance House and Genesis Residential Treatment Facility, which cater to young people with behavioral and mental health issues, will become St. Mary’s Adolescent Group Homes.

“A lot of people don’t know this is all Sisters of Charity, but people are very familiar with the St. Mary’s name,” spokeswoman Jennifer Radel said. “The St. Mary’s name has such a rich history in this community. It’s respected. And so it just seemed right that all of our entities should fall in line with the St. Mary’s name.”

Sisters of Charity, the parent company of St. Mary’s Regional Medical Center, decided to make the name change June 1 because it has several projects starting later that month, including a groundbreaking for St. Mary’s new emergency department.

The Sisters of Charity, or Grey Nuns, established a nursing school and 30-bed hospital in Lewiston in 1888, according to the St. Mary’s Regional Medical Center Web site. Over the next several decades, the Sisters of Charity expanded the hospital, built an orphanage and formed an independent living facility and formal network of primary care physicians, among other organizations.

They also established Maison Marcotte, then Marcotte Nursing Home, with a $120,000 donation from F.X. Marcotte. Although the 80-year-old program’s name will change – and the Marcotte family has given its blessing for that change – the Marcotte name will remain on the building, officials said.

And despite the overall Sisters of Charity name change, officials said, the group’s mission will remain the same.

“They (the Sisters of Charity) came here, they assessed the needs of the community and then they did whatever they could to meet that need. And we’re still doing that today,” Radel said.