Dignity Health St. Joseph's Hospital and Medical Center is a hospital in Phoenix, Arizona, United States, operated by Dignity Health. St. Joseph's is a 607-bed, not-for-profit hospital that provides a wide range of health, social and support services, with special advocacy for the poor and underserved. It is home to the Barrow Neurological Institute, the world's largest dedicated neurosurgical center and a renowned leader in neurosurgical training, research, and patient care.