Medicare and TRICARE payment rates are designed to fully reimburse institutions and be accepted by Medicare and TRICARE as full reimbursement. Hospitals, NFCs and HHAs eligible for TRICARE must enter into a participation agreement. (3) Types of suppliers. Subject to the participation provisions of this Part, the following professionals are authorized to provide services to CHAMPUS beneficiaries: (xv) Home Health Agencies (HHAs). HHAs must be approved by Medicare and meet all Medicare conditions of participation pursuant to Sections 1861(o) and 1891 of the Social Security Act (42 U.S.C. 1395x(o) and 1395bbb) and 42 CFR Part 484 with respect to TRICARE beneficiaries, in order to obtain payments under the TRICARE program. .