Removing Barriers to Colorectal Cancer Screening Act of 2020 This bill modifies cost-sharing requirements for colorectal cancer screening tests, and drug manufacturer reporting requirements, under Medicare medical services. Specifically, the bill waives coinsurance requirements with respect to colorectal cancer screening tests, regardless of the code billed for a resulting diagnosis or procedure. The bill phases in implementation over an eight-year period. Additionally, manufacturers of covered drugs that do not have rebate agreements under the Medicaid Drug Rebate Program must report similar information as is required under the program, including average sales price, total units, and wholesale acquisition cost. Manufacturers that fail to comply or that report false information are subject to civil penalties.