1918
Sacramento suffers a devastating influenza epidemic. To keep up with the growing need, Mater Misericordiae expands to 90 beds and now occupies all useable land on the block.
1919
The Sisters purchase a seven-acre dairy site at 40th & J streets to build a new hospital.
1925
The new hospital opens with a capacity of 155 beds and 35 bassinets. It also houses the nursing school.
1934
The name of the hospital is formally changed from Mater Misericordiae to Mercy Hospital (later known as Mercy General Hospital).
1950
Mercy College of Nursing closes after training more than 600 nurses, including nurses who served in both World Wars.
1951
The 40-bed Mercy Children's Hospital opens adjacent to the hospital. It is the only institution in the Sacramento Valley dedicated exclusively to pediatrics.
1954
Mercy Hospital adds a new East Wing to accommodate 115.
1967
Mercy San Juan Hospital opens on a 26-acre site in Carmichael. The new building has 215 beds and state-of-the-art equipment and technology.
1980
Mercy purchases the 39-bed Twin Lakes Community Hospital and renames it Mercy Hospital of Folsom.
1983
Mercy Children's Hospital is closed. Mercy General Hospital absorbs the pediatric services.
1986
The Sisters of Mercy in Auburn combine their health ministry with the Sisters of Mercy in Burlingame to create Catholic Healthcare West (CHW). Mercy Healthcare Sacramento becomes one of CHW's first divisions.
1989
A new 95-bed Mercy Hospital of Folsom is opened on a 22-acre parcel of land.
1991
Mercy purchases American River Hospital in Carmichael and renames it Mercy American River Hospital.
1993
Methodist Hospital, located in the southern suburbs of Sacramento County, affiliates with Mercy Healthcare Sacramento.
1996
Sierra Nevada Memorial Hospital, located in Nevada County, affiliates with Mercy Healthcare Sacramento.
Woodland Healthcare, located in Yolo County, affiliates with Mercy Healthcare Sacramento.
1997
Mercy receives county and state approval to proceed with the development of a trauma center at Mercy San Juan Hospital.
Methodist Hospital opens its renovated Intensive Care Unit.
1999
Mercy San Juan opens its long-anticipated Trauma Center, which includes a 69,000-square foot wing. The wing also houses a new Emergency Department, Trauma ICU, as well as new surgery and imaging service areas.
2000
In light of changing healthcare needs in the community, Mercy makes the difficult decision to close Mercy American River Hospital. The remaining acute care services are consolidated into the newly expanded Mercy San Juan Hospital.
Mercy San Juan formally changes its name to Mercy San Juan Medical Center
2001
Catholic Healthcare West announces a reorganization plan designed to streamline its overall structure, refocus resources at the hospitals and the communities they serve, and keep CHW competitive in the marketplace.
2003
CHW reports a positive net income for its fiscal year - the first time in six years - to culminate the successful three-year reorganization effort.
1831 
1896 
