First, the 5% sample file from the HCFA Medicare Part B file was used to identify the site of service provision, specialty of the physicians providing services, CPT codes, and ICD-9 codes for each gastroenterology service. These data were then anbsp;...
|Title||:||Evaluation of specialty physician workforce methodologies|
|Author||:||United States. Health Resources and Services Administration, Council on Graduate Medical Education (U.S.)|