Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Douglas William Benthien, M.S.

Audiologist-Hearing Aid Fitter in Menomonee Falls, WI · enumerated 2008.

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

National Provider Identifier

1699931519

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Registry record

Entity type Individual (Type 1)

Name Mr. Douglas William Benthien

Credential M.S.

Sex Male

Practice address N81w15000 Appleton Ave, Menomonee Falls, WI, 53051

Phone (262) 764-4290

Fax (262) 350-7020

Enumeration date Jul 30, 2008

Last updated in NPPES Oct 28, 2025

Taxonomy & licenses

237600000X Audiologist-Hearing Aid Fitter Speech, Language and Hearing Service Providers · License 311-156 (WI) Primary

Other identifiers

Identifier	Type	State	Issuer
41146400	Medicaid	WI	-

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

Where does Douglas Benthien practice?

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

What is the NPI number for Douglas Benthien?

The National Provider Identifier (NPI) for Douglas Benthien is 1699931519, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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John Dunne Hearing Instrument Specialist · Menomonee Falls, WI NPI 1134446560 Savana Flanders Hearing Instrument Specialist · Menomonee Falls, WI NPI 1952108631

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-10-28.