Lewiston, NY 14092. Phone Number (716) 298-2224 . Get Directions Servicing Hours. Hours. Monday - Friday: 8:30 a.m. to 4:30 p.m. Holiday Hours. 11/25: Closed. 11/26: Closed. About. The Center for Women at Mount St. Mary's Hospital is home to the best women's healthcare program in Niagara County. Our team of physicians and nurses is committed to ....