William Walker
About this NPIWhat this record shows.
NPI 1720455702 is registered to William Walker, a Case Manager/Care Coordinator practising at 4420 S 108th St in Greenfield, Wisconsin. Case Manager/Care Coordinator is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. William Walker has been enumerated in the National Provider Identifier (NPI) registry since 2015.
Your brand here.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans William Walker accepts. To confirm in-network status with your specific health plan, contact William Walker directly at (414) 383-4486.
Frequently asked
Yes. NPI 1720455702 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Case Manager/Care Coordinator is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (414) 383-4486.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. William Walker is a Type-1 individual NPI.