Code of Federal Regulations Title 42. Public Health § 42.410.12 Medical and other health services:  Basic conditions and limitations

(1) When the services must be furnished. The services must be furnished while the individual is in a period of entitlement. (The rules on entitlement are set forth in part 406 of this chapter.)

(2) By whom the services must be furnished. The services must be furnished by a facility or other entity as specified in §§ 410.14 through 410.69.

(3) Physician certification and recertification requirements. If the services are subject to physician certification requirements, they must be certified as being medically necessary, and as meeting other applicable requirements, in accordance with subpart B of part 424 of this chapter.