Immediate Relief for Rural Facilities and Providers Act of 2020 This bill establishes grant programs and other forms of financial assistance for health care providers in response to the national emergency relating to COVID-19 (i.e., coronavirus disease 2019). Specifically, the bill establishes (1) a grant program to provide emergency assistance to critical access hospitals, certain rural hospitals, and providers participating in Medicare; (2) a grant program to provide emergency assistance to health care practices and ambulatory surgery centers for staff salaries; and (3) a loan program to provide low-interest loans to health care practices and ambulatory surgery centers. The bill also temporarily increases reimbursements to rural hospitals under the Medicare swing-bed program. (The program allows rural hospitals to use beds, as needed, for either acute care or skilled nursing facility care.)