42 CFR § 410.170 - Payment for home health services, for medical and other health services furnished by a provider or an approved ESRD facility, and for comprehensive outpatient rehabilitation facility (CORF) services: Conditions.
(a) Request for payment. A written request for payment is filed by or on behalf of the individual to whom the services were furnished.
(b) Physician or allowed practitioner certification. For home health services, a physician or allowed practitioner provides certification and recertification in accordance with § 424.22 of this chapter.
(c) In the case of home dialysis support services described in § 410.52, the services are furnished in accordance with a written plan prepared and periodically reviewed by a team that includes the patient's physician and other professionals familiar with the patient's condition as required by § 494.90 of this chapter.