Improving Care in Home Health Agencies Act This bill allows the Centers for Medicare & Medicaid Services (CMS) to waive certain requirements during the public health emergency relating to COVID-19 (i.e., coronavirus disease 2019) with respect to Medicare coverage of home health services. Specifically, the bill allows the CMS to waive requirements relating to written (1) treatment plans that are signed and dated, (2) orders for care, (3) certification of eligibility, and (4) documentation of face-to-face encounters.