William Haack
About this NPIWhat this record shows.
NPI 1679392336 is registered to William Haack, a Case Manager/Care Coordinator practising at 12830 S 71st Ave Unit 1s in Palos Heights, Illinois. Case Manager/Care Coordinator is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. William Haack has been enumerated in the National Provider Identifier (NPI) registry since 2024.
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 Haack accepts. To confirm in-network status with your specific health plan, contact William Haack directly at (708) 530-3073.
Frequently asked
Yes. NPI 1679392336 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 (708) 530-3073.
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 Haack is a Type-1 individual NPI.