Saint Alphonsus Health System begins 260,000-square-foot Nampa expansion

June 26, 2026 - 03:14

Saint Alphonsus Health System has officially broken ground on a large-scale expansion of Saint Alphonsus Medical Center in Nampa. The project will add 260,000 square feet to the facility, more than doubling its current size. Hospital officials say the expansion is needed to keep up with the growing population in the Treasure Valley and to meet increasing demand for medical services.

The new construction will include additional patient rooms, expanded emergency department capacity, and upgraded surgical suites. The hospital will also add space for advanced imaging and diagnostic services. Leaders at Saint Alphonsus say the project will allow them to offer more care locally, reducing the need for patients to travel to Boise or other larger cities for treatment.

The expansion is expected to take several years to complete. Once finished, the hospital will be able to serve significantly more patients each year. The project is also expected to create hundreds of construction jobs during the building phase and add new permanent healthcare positions once it opens. Hospital administrators say the goal is to create a modern medical campus that can support the community for decades to come.