42 C.F.R. § 424.550
(b) Change of ownership. In the case of a provider undergoing a change of ownership in accordance with part 489, subpart A of this chapter, the current owner and the prospective new owner must complete and submit enrollment applications before completion of the change of ownership. If the current owner fails to complete and submit an enrollment application to report the change, the current owner may be sanctioned or penalized, even after the date of ownership change, in accordance with §§ 424.520, 424.540, and 489.53 of this chapter. If the prospective new owner fails to submit a new enrollment application containing information concerning the new owner within 30 days of the change of ownership, CMS may deactivate the Medicare billing number. If an incomplete enrollment application is submitted, CMS may also deactivate the Medicare billing number based upon material omissions on the submitted enrollment application, or based on preliminary information received or determined by CMS that makes CMS question whether the new owner is ultimately granted a final transference of the provider agreement.
(1) Unless an exception in paragraph (b)(2) of this section applies, if there is a change in majority ownership of a home health agency (HHA) or hospice by sale (including asset sales, stock transfers, mergers, and consolidations) within 36 months after the effective date of the HHA's or hospice's initial enrollment in Medicare or within 36 months after the HHA's or hospice's most recent change in majority ownership, the provider agreement and Medicare billing privileges do not convey to the new owner. The prospective provider/owner of the HHA or hospice must instead do both of the following:
(2)
[71 FR 20776, Apr. 21, 2006, as amended at 74 FR 58134, Nov. 10, 2009; 75 FR 70465, Nov. 17, 2010; 75 FR 76293, Dec. 8, 2010; 86 FR 62421, Nov. 9, 2021; 88 FR 77878, Nov. 13, 2023]