title: Medicare billing numbers: a necessity for PNPs.
authors.forename: D H
authors.initials: DH
authors.lastname: Havens
mesh_terms: D002648:Child; D006801:Humans; D006278:Medicare / Q000191:economics* / Q000331:legislation & jurisprudence*; D009722:Nurse Practitioners / Q000191:economics* / Q000331:legislation & jurisprudence*; D010371:Pediatric Nursing / Q000191:economics* / Q000331:legislation & jurisprudence*; D012051:Reimbursement Mechanisms / Q000331:legislation & jurisprudence*; D013689:Telephone; D014481:United States