MedicaidAdministrativeMedium impact
Wisconsin Medicaid Is Now Collecting National Provider Identifiers
Wisconsin Medicaid (ForwardHealth)·WI·Medical Policy
Effective date
Nov 1, 2007
We identified it
Jun 20, 2026
Summary
Wisconsin Medicaid is now collecting National Provider Identifiers (NPIs) from all Medicaid-certified healthcare providers in preparation for NPI implementation. Providers must submit their NPIs by November 1, 2007, but should continue using their 8-digit Medicaid provider numbers on all claims until further notice.
Action Required
By November 1, 2007: All Wisconsin Medicaid providers must obtain an NPI at https://nppes.cms.hhs.gov/NPPES/Welcome.do and submit it to Wisconsin Medicaid via web application, email to winpi@dhfs.state.wi.us, or mail form HCF 13505 to Provider Maintenance. Continue using 8-digit Medicaid provider numbers on all claims and transactions until further notice. Retain confirmation letter from Wisconsin Medicaid for future reference.