The United States Government Accountability Office (GAO) has issued a report on federal oversight of the Medicaid Recovery Audit Contractor (RAC) program.  GAO found that there was inadequate federal oversight of the Medicaid RAC program (in which New York participates), particularly when it came to payments made by Medicaid managed care plans, which account for more than 50% of Medicaid expenditures.  To read the GAO report on federal oversight of the Medicaid RAC program, use the first link below.  To read GAO highlights of the report on federal oversight of the Medicaid RAC program, use the second link below.
https://www.gao.gov/assets/gao-23-106025.pdf  (GAO report on federal oversight of the Medicaid RAC program)
https://www.gao.gov/assets/gao-23-106025-highlights.pdf  (GAO highlights on federal oversight of the Medicaid RAC program)