title: Medicare billing: ignorance is not a defense.
authors.forename: S
authors.initials: S
authors.lastname: Peters
mesh_terms: D003953:Diagnosis-Related Groups / Q000145:classification / Q000191:economics; D006801:Humans; D006278:Medicare / Q000191:economics* / Q000331:legislation & jurisprudence; D009722:Nurse Practitioners / Q000191:economics*; D012051:Reimbursement Mechanisms / Q000331:legislation & jurisprudence*; D014481:United States