Welcome to Malheur Memorial Health Center, where your health is our main focus. We are a family practice in Nyssa, OR dedicated to taking care of our patients. A discounted sliding fee schedule is available. Our licensed providers, Dr. John Phillips, Kent Sandquist PA-C and Amy Chan PA-C, provide you with professional medical advice.Malheur Memorial Health Center has been providing healthcare needs for the Treasure Valley area Malheur Memorial Health Center accepts walk-ins if schedule permits, but it is best to make an appointment. Malheur Memorial Health Center has been providing healthcare needs for the Treasure Valley area since 1989.