providing for the obtaining of any relevant health services granting assistance in defraying expenditure incurred in connection with the rendering of any relevant health service or rendering a relevant health service, either by the medical scheme itself, or by any supplier or group of suppliers of a relevant health service or by any person, in association with or in terms of an agreement with a medical scheme. Discovery Health and NetcarePlus have contracted with healthcare providers who are compensated through the voucher model. The CMS says it understands that doctors are paid less than they would ordinarily be paid by cash paying members.