Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Cassandra Jean Degreef, AUD

Audiologist in Green Bay, WI · enumerated 2018.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1700362860

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Registry record

Entity type Individual (Type 1)

Name Dr. Cassandra Jean Degreef

Credential AUD

Sex Female

Practice address 1860 Shawano Ave, Green Bay, WI, 54303

Phone (920) 405-1414

Enumeration date Jul 12, 2018

Last updated in NPPES Jun 2, 2022

Taxonomy & licenses

231H00000X Audiologist Speech, Language and Hearing Service Providers · License 663156 (WI) Primary

AUD · Doctor of Audiology: A licensed audiologist diagnosing and treating hearing and balance disorders. About the AUD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Cassandra Degreef?

Cassandra Degreef is registered in NPPES with the primary taxonomy of Audiologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-06-02.