Kaiser Permanente Ontario Mental Health Offices

Medicare Members: To request a hard copy of Kaiser Permanente’s provider directory, please call our Member Services department at 1-800-443-0815, seven days a week, 8 a.m. Ontario Mental Health Offices | Kaiser Permanente Print Ontario Mental Health Offices Medical Office Building Kaiser Permanente facility Monday through Thursday, 7 a.m. Kaiser Permanente will mail a hard copy of the provider directory to you within three (3) business days of your request.