Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Catherine Hessig, AU.D

Audiologist in Bloomington, MN · enumerated 2014.

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

National Provider Identifier

1225438948

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Registry record

Entity type Individual (Type 1)

Name Dr. Catherine Hessig

Credential AU.D

Sex Female

Practice address 8001 Bloomington Freeway, Gn Hearing Care, Bloomington, MN, 55420

Phone (847) 832-3766

Fax (847) 832-3766

Enumeration date Aug 29, 2014

Last updated in NPPES Aug 29, 2014

Taxonomy & licenses

231H00000X Audiologist Speech, Language and Hearing Service Providers · License 7377 (MN) 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 is the NPI number for Catherine Hessig?

The National Provider Identifier (NPI) for Catherine Hessig is 1225438948, a Type 1 (individual) record in the CMS NPPES registry.

Where does Catherine Hessig practice?

The practice location on file with NPPES is in Bloomington, MN. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-08-29.