CMS may terminate a provider agreement, in accordance with Sec. 489.53(a)(1) of this chapter, if the provider--
(a) Executes or continues a power of attorney, or enters into or continues any other arrangement, that authorizes or permits payment contrary to the provisions of this subpart; or
(b) Fails to furnish, upon request by CMS or the intermediary, evidence necessary to establish compliance with the requirements of this subpart.