What is kaiser phone number? The customer support phone number of Kaiser Permanente is 1-800-464-4000/1-800-443-0815/1-800-777-1370 (Click phone number to call).What is the phone number for kaiser appointments? For medication questions, contact your Kaiser Permanente pharmacy. For mail order pharmacy questions, call 206-630-7979 & 1-800-245-7979.What is kaiser pharmacy phone number? This information is not a complete description of benefits. Call 1-866-973-4584 toll free (TTY 711) 8 a.m. to 8 p.m., 7 days a week, for more information. You must reside in the Kaiser Permanente Medicare health plan service area in which you enroll.