1905: Pocatello General Hospital was incorporated.
1906: Three other hospital facilities are in operation including the McMillan House, the Burbank House, and one run by the Oregon Short Line.
1907: The first patient is admitted to Pocatello General Hospital
1911: The first commencement of nurses graduating Pocatello General.
1915: 20 Catholic Sisters of Mercy begin caring for the ill out of a local home.
1918: St. Anthony Mercy Hospital opens with 50 beds and 18 nursing students.
1919: Pocatello General Hospital expands and is run jointly by the City and County. Lynn Brothers' Hospital is incorporated.
1939: Lynn Brothers' private hospital buys state-of-the-art x-ray machine. City of Pocatello got out of the hospital business and turns control over to the County Commissioners. They in turn established Pocatello General's first Board of Directors.
1942: St. Anthony Mercy Hospital undergoes the first of four major renovations.
1950: A bond issue is passed for the construction of new county hospital called Bannock Memorial Hospital. Construction begins for the $1.8 million facility
1952: Bannock Memorial Hospital opens, providing 101 beds. Idaho State University incorporates a Nursing Program.
1970: The Intermountain Cancer Center becomes part of Bannock Memorial Hospital and offers revolutionary cobalt radiation therapy.
1976: The Sisters of Mercy sell St. Anthony Community Hospital to Intermountain Health Care.
1981: Construction of the $18 million Pocatello Regional Medical Center begins.
1982: Bannock Memorial puts in place a new $11 million pediatric unit. Bannock Memorial Hospital is changed to Bannock Regional Medical Center. On June 10, 33 patients from St. Anthony Hospital are transferred to Pocatello Regional Medical Center as a new era in hospital care begins.
1986: PRMC introduces a new 12-bed Woman's Center.
1989: Pocatello Regional adds a very sophisticated Single Photon Emission Computed Tomography imager to their diagnostic services.
1992: PRMC builds a $2 million sports medicine/orthopedics rehabilitation center near Holt Arena.
2002: Pocatello Regional Medical Center and bannock Regional Medical Center merge and create the city's third largest employer.
2004: Portneuf Medical Center unveils plans to create a single, consolidated campus on the current east campus by 2015.
2005: The hospital opens a state of the art Heart and Vascular Center on the east campus.
2006: Portneuf accelerates its construction plans to create a single campus by 2012.