npi_flatten             S3 method to flatten an 'npi_results' object
npi_flatten.npi_results
                        Flatten NPI search results
npi_is_valid            Check if candidate NPI number is valid
npi_search              Search the NPI Registry
npi_summarize           S3 method to summarize an 'npi_results' object
npi_summarize.npi_results
                        Summary method for 'npi_results' S3 object
npis                    Sample results from the NPI Registry
