The procedures described in this subpart constitute the only method by which any individuals or entities can obtain a binding advisory opinion on the subject of a physician's referrals, as described in § 411.370 . CMS has not and does not issue a binding advisory opinion on the subject matter in § 411.370 , in either oral or written form, except through written opinions it issues in accordance with this subpart.
42 C.F.R. §411.386