English to French Bus/Financial Medical: Health Care

Here are 2 sentences where this term appears. The context is health funding mechanisms:

Provider payment focuses on the way in which services are purchased strategically; and on the incentives implicit or explicit between providers and purchasers (through formal or informal contracts) and their implication to health service delivery.

Within the context of exploring value for money this keynote paper sets out some of the options with regard to two key components of the health system, namely: health financing and payment provider mechanisms.

Linguee says fournisseur de paiement, but I dont think this is correct.

Would appreciate your input and comments/explanations on the term!