Notwithstanding section
1396o
(e) of this title or any other provision of law, a State may permit a provider participating under the State plan to require, as a condition for the provision of care, items, or services to an individual entitled to medical assistance under this subchapter for such care, items, or services, the payment of any cost sharing authorized to be imposed under this section with respect to such care, items, or services. Nothing in this paragraph shall be construed as preventing a provider from reducing or waiving the application of such cost sharing on a case-by-case basis.