St. Alphonsus Medical Center - Ontario
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Ontario’s First and Only Hospital

Ontario's First and Only HospitalOntario’s one and only hospital began with a small group of Dominican Sisters of the Portuguese Congregation of St. Catherine of Sienna. The six sisters included Mother M. Catherine Roth who served as the superior and mentor of the group; Mother Mary Patrick Maguire; Mother M. Dominic Murphy; Mother M. Antoninus McCabe; Sister M. Augustine Collins; and Sister M. Catherine Clayton.

The sisters’ project began in a tent with limited resources. With the ambition of the sisters and the community’s overwhelming support, the hospital went from a dream to a reality, breaking ground September 18, 1911, and completing ahead of schedule on April 15, 1912. Bishop O’Reilly named the hospital in honor of the Holy Rosary.

Saint Alphonsus Medical Center — Ontario (formerly Holy Rosary Medical Center) is approaching one hundred years of providing care to Ontario, Fruitland, Payette and surrounding communities. For this significant milestone, we not only celebrate the passing of one hundred years but we also reflect on the journey experienced along the way.

We commemorate one hundred years of dedicated nurses providing a healing touch, committed doctors performing miracles, the sick becoming well, the prayer of a chaplain bringing comfort to a family, pink ladies delivering flowers to patients and the healthy cry of a new baby. We are appreciative for hospital board members, leaders and staff for their relentless pursuit to overcome one hundred years of challenge and adversity to press forward and fulfill the mission set forth by the Dominican Sisters. And we are grateful for the continued support of our communities; without you, we would not have this opportunity to celebrate.

The hospital has seen several changes over the past century; however the mission started by the Sisters to serve the healthcare needs of the Treasure Valley and provide healing and hope remains at the core of all that we do.

It is likely the Dominican Sisters would be in extreme disbelief to know the same hospital they were only dreaming of would one day donate millions of dollars in community benefit each year. Saint Alphonsus moves forward knowing and understanding the hospital's heritage and mission and will work tirelessly to continue the legacy started by the Dominican Sisters.

Saint Alphonsus Health System History

On April 1, 2010, Holy Rosary Medical Center (Ontario, Oregon), Mercy Medical Center (Nampa, Idaho), St. Elizabeth Health Services (Baker City, Oregon), and Saint Alphonsus Regional Medical Center (Boise, Idaho), joined together to form the Saint Alphonsus Health System with Ontario, Nampa and Baker City each changing its name to Saint Alphonsus Medical Center.

The four-hospital, 714-bed integrated health system was created to serve the 21st century healthcare needs of the people of southwestern Idaho, eastern Oregon and northern Nevada.

Also connected to this powerful health system is Saint Alphonsus Medical Group, with more than 200 primary care and specialty care providers at 35 clinic locations.

As a not-for-profit, Saint Alphonsus Health System reinvests profits into the community and works to improve the health and well-being of those we serve by emphasizing care that is patient-centered, innovative and community-based. Saint Alphonsus Health System is a member of Trinity Health, Novi, Michigan.

Trinity Health is the fourth-largest Catholic healthcare system in the United States and is devoted to a ministry of healing and hope. Serving through a network of 46 acute-care hospitals, 379 outpatient facilities, 33 long-term care facilities, and numerous home health offices and hospice programs in nine states, Trinity Health draws on a rich and compassionate history of care extending beyond 140 years.

Trinity Health aims to be transformational, both in ministry and operations, while adhering to and exceeding national performance benchmarks. By working together, Trinity Health has become one of the strongest and most respected networks of not-for-profit community hospitals in the country. The culture and operating model focus solely on how to best create a superior patient care experience supported by operational and service excellence.



Saint Alphonsus Medical Center - Ontario  |  351 S.W. 9th Street  |  Ontario, Oregon 97914  |  541-881-7000

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