Kaiser Permanente offers various medical services. Bills can be paid at the medical office or through several other optional payment services. Pay online: You can pay your Kaiser Permanente bill online at http://paykaiser.com/. When making payment online, customers will need the medical record number associated with the account. Online payment methods accepted by Kaiser Permanente include Visa, Mastercard and Discover. Pay by phone: Customers can call 1-800-348-0264 for the customer billing department. Payments are accepted by phone using credit and debit cards.