St. John's Regional Medical Center is a hospital that offers many services, including bariatric surgery, maternity and birth center, and neurological care. Visit St. John's Regional Medical Center located at 1600 North Rose Avenue, Oxnard, CA. This Oxnard hospital is one of the best in California. As part of the Dignity Health network, St. John's Regional Medical Center is dedicated to delivering high quality, compassionate care and access to Oxnard and nearby communities.