Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

George W Koch

Hearing Instrument Specialist in Janesville, WI · enumerated 2007.

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

National Provider Identifier

1831399724

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Registry record

Entity type Individual (Type 1)

Name George W Koch

Sex Male

Practice address 2000 Milton Ave, Janesville, WI, 53545

Phone (608) 727-0123

Enumeration date Jul 19, 2007

Last updated in NPPES May 6, 2009

Taxonomy & licenses

237700000X Hearing Instrument Specialist Speech, Language and Hearing Service Providers · License 1024-060 (WI) Primary

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

How do I verify George Koch's NPI record?

Cross-check NPI 1831399724 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1831399724 active?

Yes, as of the latest NPPES snapshot, NPI 1831399724 is active (record last updated 2009-05-06).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-05-06.