Home Compliance Officers OIG: Coding Mistake Leads to $22.5M in Medicare Overpayments to Doctors in Nursing Homes OIG: Coding Mistake Leads to $22.5M in Medicare Overpayments to Doctors in Nursing Homesadmin Jun 01, 2023 0 Comments Medicare overpaid physicians serving in facility settings during a two-year audit period — about $22.5 million more for over a million claims.